JP4615870B2 - Humidification gas supply system - Google Patents

Humidification gas supply system Download PDF

Info

Publication number
JP4615870B2
JP4615870B2 JP2004010933A JP2004010933A JP4615870B2 JP 4615870 B2 JP4615870 B2 JP 4615870B2 JP 2004010933 A JP2004010933 A JP 2004010933A JP 2004010933 A JP2004010933 A JP 2004010933A JP 4615870 B2 JP4615870 B2 JP 4615870B2
Authority
JP
Japan
Prior art keywords
water
gas
raw
humidified gas
temperature
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.)
Expired - Fee Related
Application number
JP2004010933A
Other languages
Japanese (ja)
Other versions
JP2005203324A5 (en
JP2005203324A (en
Inventor
俊弘 石橋
道広 岸元
泰彦 藤原
修 波江野
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nittetsu Elex Co Ltd
Original Assignee
Nittetsu Elex 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 Nittetsu Elex Co Ltd filed Critical Nittetsu Elex Co Ltd
Priority to JP2004010933A priority Critical patent/JP4615870B2/en
Publication of JP2005203324A publication Critical patent/JP2005203324A/en
Publication of JP2005203324A5 publication Critical patent/JP2005203324A5/ja
Application granted granted Critical
Publication of JP4615870B2 publication Critical patent/JP4615870B2/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

Links

Images

Classifications

    • 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
    • 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
    • Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
    • Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
    • Y02P70/50—Manufacturing or production processes characterised by the final manufactured product

Landscapes

  • Fuel Cell (AREA)

Description

本発明は、固体高分子型の燃料電池にガスと水蒸気とを混合した加湿ガスを供給する加湿ガス供給システムに関する。 The present invention relates to a humidified gas supply system for supplying a humidified gas obtained by mixing gas and water vapor to a solid polymer fuel cell.

例えば、固体高分子型燃料電池は、一般的に、水素イオン伝導性の固体高分子を白金触媒を担持したカーボン電極で挟み込んで構成される発電素子、即ち固体高分子電解質膜−電極接合体、及び各電極面にそれぞれの反応ガスを供給するためのガス通路を画成すると共に、発電素子を両側から支持するガス分離部材を積層した構造を有する。そして、一方の電極に水素ガス（燃料ガス）を供給し、他方の電極に酸素あるいは空気即ち酸化剤ガスを供給して、燃料ガスの酸化還元反応にかかる化学エネルギーを、直接電気エネルギーとして取り出すようになっている。 For example, a solid polymer fuel cell generally includes a power generation element constituted by sandwiching a hydrogen ion conductive solid polymer between carbon electrodes carrying a platinum catalyst, that is, a solid polymer electrolyte membrane-electrode assembly, In addition, a gas passage for supplying each reaction gas to each electrode surface is defined, and a gas separation member for supporting the power generation element from both sides is laminated. Then, hydrogen gas (fuel gas) is supplied to one electrode and oxygen or air, that is, an oxidant gas is supplied to the other electrode, so that chemical energy related to the oxidation-reduction reaction of the fuel gas is directly taken out as electric energy. It has become.

この燃料電池にあっては、アノード側で水素ガスがイオン化して固体高分子電解質膜中を移動し、電子は、外部負荷を通ってカソード側に移動し、酸素と反応して水を生成する一連の電気化学反応により電気エネルギーを取り出すことができる。この固体高分子電解質膜中を水素イオンが移動するため、固体高分子電解質膜が乾燥してしまうと、イオン伝導率が低下し、エネルギー変換効率が低下してしまうので、水分を供給する必要がある。 In this fuel cell, hydrogen gas is ionized on the anode side and moves in the solid polymer electrolyte membrane, and electrons move to the cathode side through an external load and react with oxygen to produce water. Electrical energy can be extracted by a series of electrochemical reactions. Since hydrogen ions move through the solid polymer electrolyte membrane, if the solid polymer electrolyte membrane is dried, the ionic conductivity is lowered and the energy conversion efficiency is lowered. is there.

そこで、従来の固体高分子型燃料電池においては、例えば、特許文献１に示すように、水蒸気透過膜を使用した加湿装置や噴霧器等によって反応ガスを積極的に加湿して高い反応速度を維持するようにしている。そして、最終的には大容量のチャンバー内に加湿したガスを所定温度、所定湿度に保つようにして保持し、発電量に応じて加湿したガスを燃料電池に供給している。一方、燃料電池の製造にあたっては、出荷前に前述の固体高分子電解質膜に適度の湿り気が必要であり、また、性能検査にあたっては、その水分条件を精度よく確保する必要がある。 Therefore, in a conventional polymer electrolyte fuel cell, for example, as shown in Patent Document 1, a reactive gas is actively humidified by a humidifier or a sprayer using a water vapor permeable membrane to maintain a high reaction rate. I am doing so. Finally, the humidified gas is held in a large-capacity chamber so as to maintain a predetermined temperature and a predetermined humidity, and the humidified gas is supplied to the fuel cell according to the amount of power generation. On the other hand, in the production of a fuel cell, the above-mentioned solid polymer electrolyte membrane needs to be moderately moistened before shipment, and in the performance inspection, the moisture condition needs to be ensured with high accuracy.

特開平６−１３２０３８号公報（図１）Japanese Patent Laid-Open No. 6-132038 (FIG. 1)

しかしながら、特許文献１に記載の方法では、成分設定が必要な出荷前の水分付与工程、性能検査工程において、一定の水分を含む加湿ガスを製造することは困難であって時間がかかり（通常、数十分）、その間、加湿ガスの温度や圧力、更には湿度が一定せず、燃料電池性能検査の条件設定に困難を伴うという問題があった。 However, in the method described in Patent Document 1, it is difficult and time-consuming to produce a humidified gas containing a certain amount of moisture in the moisture application step before shipment and the performance inspection step that require component setting (usually, In the meantime, the temperature and pressure of the humidified gas and the humidity are not constant, and there is a problem in that it is difficult to set conditions for the fuel cell performance inspection.

本発明はかかる事情に鑑みてなされたもので、短時間で、所定の温度、流量、及び湿度の加湿ガスを製造することが可能な加湿ガス供給システムを提供することを目的とする。 The present invention has been made in view of such circumstances, and an object thereof is to provide a humidified gas supply system capable of producing a humidified gas having a predetermined temperature, flow rate, and humidity in a short time.

前記目的に沿う請求項１記載の加湿ガス供給システムは、原料ガスを水蒸気と混合して製品加湿ガスを生成し、該製品加湿ガスを固体高分子型の燃料電池に連続的に供給する加湿ガス供給システムであって、
前記製品加湿ガスに最終的に含まれる水量に見合う原水を供給する水供給手段と、
前記原料ガスを供給するガス供給手段と、
前記水供給手段から供給された原水を加熱すると共に、前記ガス供給手段から前記原料ガスを供給して前記水蒸気を発生させる蒸発部と、
前記蒸発部から供給される前記水蒸気及び前記原料ガスを混合して生加湿ガスを生成させ、この生加湿ガスを加熱して過熱加湿ガスを生成させる混合昇温部と、
前記混合昇温部で生成した過熱加湿ガスを降温し、前記製品加湿ガスを生成する冷却部とを有し、前記蒸発部、前記混合昇温部及び前記冷却部は、高さ方向に下から順に積み上げられて、しかも、
前記蒸発部は、前記水供給手段から供給される原水を貯留し、該原水中には前記ガス供給手段によって供給された原料ガスの気泡の上昇の抵抗となると共に、前記気泡を更に小さくする球状固形物が充填された貯水槽と、
前記貯水槽に貯留された原水の水面よりも高い位置に配置され、前記水供給手段から供給される原水を一旦受ける受皿と、
前記蒸発部内を加熱して供給された前記原水を前記水蒸気とする１又は２以上の発熱体からなる第１の加熱手段とを有し、更に前記ガス供給手段から供給される原料ガスを前記貯水槽に溜められた原水中に通して加湿して、
所定の温度、流量、及び湿度の前記製品加湿ガスを製造する。 The humidified gas supply system according to claim 1, wherein the humidified gas supply system according to claim 1 mixes the raw material gas with water vapor to produce a product humidified gas, and continuously supplies the product humidified gas to the solid polymer fuel cell. A feeding system,
Water supply means for supplying raw water corresponding to the amount of water finally contained in the product humidified gas;
Gas supply means for supplying the source gas;
An evaporator that heats the raw water supplied from the water supply means and supplies the raw material gas from the gas supply means to generate the water vapor;
Mixing the water vapor and the raw material gas supplied from the evaporation unit to generate a raw humidified gas, and heating the raw humidified gas to generate a superheated humidified gas; and
A cooling unit that cools the superheated humidified gas generated in the temperature rising unit and generates the product humidified gas, and the evaporating unit, the mixed temperature rising unit, and the cooling unit are arranged in a height direction from below. Stacked one after another,
The evaporating unit stores the raw water supplied from the water supply unit, and the raw water has a spherical shape that provides resistance to rising of the bubbles of the source gas supplied by the gas supply unit and further reduces the bubbles. A water tank filled with solids;
A tray that is disposed at a position higher than the surface of the raw water stored in the water tank, and that once receives the raw water supplied from the water supply means;
First heating means comprising one or more heating elements that use the raw water supplied by heating the inside of the evaporation section as the water vapor, and the raw material gas supplied from the gas supply means is further stored in the water storage Humidify it through the raw water stored in the tank,
The product humidified gas having a predetermined temperature, flow rate and humidity is produced.

請求項１記載の加湿ガス供給システムにおいて、原料ガスとしては、水素、空気、水素と二酸化炭素の混合気体、水素と一酸化炭素の混合気体等が用いられる。また、原水としては、２μＳ／ｃｍ以下、好ましくは１μＳ／ｃｍ以下の純水が好適に用いられる。水供給手段としては、一定水量の原水を供給できればよく、例えば、回転数によって一定の水量の原水を供給する定量ポンプが用いられ、この場合には、原水中の気体を除去するために真空引きによって脱気するのが好ましい。冷却部としては、高温の過熱加湿ガスを降温できればよく、例えば、熱交換器が用いられる。 In the humidified gas supply system according to claim 1, hydrogen, air, a mixed gas of hydrogen and carbon dioxide, a mixed gas of hydrogen and carbon monoxide, or the like is used as the raw material gas. Moreover, as raw water, pure water of 2 μS / cm or less, preferably 1 μS / cm or less is suitably used. As the water supply means, it is only necessary to supply a constant amount of raw water. For example, a metering pump that supplies a constant amount of raw water according to the number of revolutions is used. In this case, a vacuum pump is used to remove gas in the raw water. It is preferable to deaerate. As a cooling part, what is necessary is just to be able to temperature-fall high temperature overheating humidification gas, for example, a heat exchanger is used.

そして、前記蒸発部、前記混合昇温部及び前記冷却部は、高さ方向に下から順に積み上げられている。ここで、混合昇温部で生成した過熱加湿ガスが、その上に位置する冷却部で降温されて、過熱加湿ガス中の水蒸気（過熱水蒸気）が露点以下となって水滴となった際に、この水滴が落下して、蒸発部に供給することができる。
また、請求項２記載の加湿ガス供給システムは、請求項１記載の加湿ガス供給システムにおいて、前記球状固形物は直径が３〜７ｍｍの球状のボールである。 And the said evaporation part, the said mixing temperature rising part, and the said cooling part are piled up in order from the bottom in the height direction. Here, when the superheated humidified gas generated in the mixed temperature raising unit is cooled down in the cooling unit located above, the water vapor in the superheated humidified gas (superheated water vapor) becomes a dew point or less and becomes water droplets. This water droplet falls and can be supplied to the evaporation section.
The humidified gas supply system according to claim 2 is the humidified gas supply system according to claim 1, wherein the spherical solid is a spherical ball having a diameter of 3 to 7 mm.

なお、請求項１記載の加湿ガス供給システムにおいて、前記冷却部の下流側には生成した前記製品加湿ガスを保温あるいは昇温する温調部が設けられ、前記燃料電池に供給する該製品加湿ガスの温度を所定値にすることもできる。ここで、温調部には、配管ヒータや断熱材等が使用できる。また、生成した製品加熱ガスを加熱して所定温度よりも高い加湿ガスとし、外部への熱の放散による温度低下を防止し、更に燃料電池に供給する前に降温して所定温度とした製品加湿ガスとすることもできる。 2. The humidified gas supply system according to claim 1 , wherein a temperature adjusting unit for keeping the temperature of the generated product humidified gas or increasing a temperature thereof is provided downstream of the cooling unit, and the product humidified gas supplied to the fuel cell. The temperature can be set to a predetermined value. Here, a pipe heater, a heat insulating material, etc. can be used for a temperature control part. In addition, the product heating gas produced is heated to a humidified gas higher than a predetermined temperature to prevent a temperature drop due to heat dissipation to the outside, and the product humidified to a predetermined temperature by lowering the temperature before supplying to the fuel cell. Gas can also be used.

請求項１記載の加湿ガス供給システムは、受皿に供給されて加熱された原水は、貯水槽内の原水と混合されても温度低下を起こし難くなる。また、貯水槽内に貯留された原水は、第１の加熱手段によって加熱され、貯水槽内の加熱された原水に原料ガスを通して、水蒸気を発生させ、原料ガスを加湿することができる。 Humidified gas supply system of claim 1, wherein the raw water is heated is supplied to the pan may be mixed with the raw water water storage tank hardly cause a temperature drop. Further, the raw water stored in the water storage tank is heated by the first heating means, through a heated feed gas to the raw water in the water tank to generate steam, it is possible to humidify the feed gas.

請求項３記載の加湿ガス供給システムは、請求項１記載の加湿ガス供給システムにおいて、前記発熱体の少なくとも１つは過熱水蒸気であって、該過熱水蒸気を用いて前記蒸発部内を加熱して、前記貯水槽に溜められた前記原水を昇温すると共に、前記水供給手段から前記蒸発部に供給する前記原水の水量を、前記蒸発部内に供給する前記過熱水蒸気の水量分減らす。 Humidified gas supply system of claim 3, wherein, in the humidified gas supply system of claim 1, wherein at least one of the heating element is a superheated steam, and heating the evaporating portion by using superheated steam, while heating the raw water pooled in the water storage tank, the amount of water in the raw water supplied to the evaporator part from the water supply means, reducing water content of the superheated steam to be supplied to the evaporating portion.

請求項４記載の加湿ガス供給システムは、請求項１〜３記載の加湿ガス供給システムにおいて、前記混合昇温部は、下部に前記生加湿ガスを生成させる混合部を備え、上部に該混合部で生成した生加湿ガスを加熱して、前記過熱加湿ガスを生成させる昇温部を備えている。ここで、原料ガスと水蒸気の流れによって自然に両者が混合されるが、混合を促進する必要があれば、混合部に、例えば邪魔板等を置いて、ガスの流れによって積極的に乱流を発生させてもよい。また、邪魔板等によって、生加湿ガスが昇温部に接近するように誘導し、生加湿ガスを効率よく昇温させてもよい。 The humidified gas supply system according to claim 4 is the humidified gas supply system according to claims 1 to 3 , wherein the mixed temperature raising unit includes a mixing unit that generates the raw humidified gas at a lower part, and the mixing unit at an upper part. A heating unit for heating the raw humidified gas generated in step 1 to generate the superheated humidified gas is provided. Here, both are naturally mixed by the flow of the raw material gas and the water vapor, but if it is necessary to promote the mixing, for example, a baffle plate is placed in the mixing portion, and the turbulent flow is actively caused by the gas flow. It may be generated. Further, the raw humidified gas may be guided by a baffle plate or the like so as to approach the temperature raising portion, and the raw humidified gas may be efficiently heated.

請求項１〜４記載の加湿ガス供給システムは、水蒸気及び原料ガスを混合して生加湿ガスを生成させ、この生加湿ガスを加熱して過熱加湿ガスを生成させる混合昇温部と、混合昇温部で生成した過熱加湿ガスを降温して製品加湿ガスを生成する冷却部とを有するので、所定温度以上に加熱された過熱加湿ガスを降温して、所定の温度、流量、及び湿度の製品加湿ガスを製造でき、製品加湿ガスの温度管理がし易くなる。 The humidified gas supply system according to any one of claims 1 to 4 includes a mixing temperature raising unit that mixes water vapor and a raw material gas to generate a raw humidified gas, heats the raw humidified gas to generate a superheated humidified gas, And a cooling unit that generates a product humidified gas by lowering the superheated humidified gas generated in the warming part, so that the superheated humidified gas heated to a predetermined temperature or more is cooled to obtain a product having a predetermined temperature, flow rate, and humidity. The humidified gas can be manufactured, and the temperature of the product humidified gas can be easily controlled.

そして、蒸発部、混合昇温部及び冷却部は、高さ方向に下から順に積み上げられているので、過熱加湿ガス中の水蒸気が冷却部で冷却され水滴となった際に蒸発部に再び戻り、水供給手段から供給する原水の量を少なくできる。 Since the evaporating unit, the mixing temperature raising unit and the cooling unit are stacked in order from the bottom in the height direction, when the water vapor in the superheated humidified gas is cooled by the cooling unit to form water droplets, the evaporating unit returns to the evaporating unit again. The amount of raw water supplied from the water supply means can be reduced.

また、蒸発部には、水供給手段から供給される原水を貯留する貯水槽と、貯水槽に貯留された原水の水面よりも高い位置に配置され、水供給手段から供給される原水を一旦受ける受皿と、蒸発部内を加熱して供給された原水を水蒸気とする１又は２以上の発熱体からなる第１の加熱手段とを有し、更にガス供給手段から供給される原料ガスを貯水槽に溜められた原水中を通して加湿するので、受皿に供給されて加熱された原水は貯水槽内の原水の温度を低下させ難くなり、第１の加熱手段での加熱効率が向上する。 Further, the evaporation unit includes a water storage tank for storing the water supplied from the water supply means is disposed at a position higher than the water level of the raw water stored in the water storage tank, the water supplied from the water supply means temporarily A receiving tray, and a first heating means composed of one or more heating elements whose raw water supplied by heating the inside of the evaporation section is steam, and further a raw material gas supplied from the gas supply means Since the raw water stored in the water is humidified, the raw water supplied to the tray and heated is unlikely to lower the temperature of the raw water in the water storage tank, and the heating efficiency of the first heating means is improved.

請求項３記載の加湿ガス供給システムは、発熱体の少なくとも１つは過熱水蒸気であって、過熱水蒸気を用いて蒸発部内を加熱して、貯水槽に溜められた原水を昇温すると共に、水供給手段から蒸発部に供給する原水の水量を、蒸発部内に供給する過熱水蒸気の水量分減らすので、過熱水蒸気を原水として使用でき、また、貯留されている原水に与える熱量とすることができる。この熱量は、蒸気が液化により放出される熱量であって、原料ガスの流量増変更時には、一時に必要な高熱量を補うことができる。 Humidified gas supply system of claim 3, wherein at least one heating element is a superheated steam, to heat the evaporation portion with superheated steam, the raw water pooled in the water storage tank as well as heating, Since the amount of raw water supplied from the water supply means to the evaporation unit is reduced by the amount of superheated steam supplied into the evaporation unit, the superheated steam can be used as the raw water and can be used as the amount of heat given to the stored raw water. . This amount of heat is the amount of heat released by liquefaction, and can compensate for the high amount of heat required at one time when the flow rate of the raw material gas is increased.

請求項１記載の加湿ガス供給システムは、貯水槽には、貯留された原水中に球状固体物が充填されているので、貯水槽中に供給された原料ガスの気泡の上昇の抵抗となり、原料ガスと水を十分に接触させることができる。また、原料ガスの気泡を小さくして、水との接触面積を大きくできる。 In the humidified gas supply system according to claim 1 , since the water storage tank is filled with spherical solid matter in the stored raw water, it becomes resistance to rising of bubbles of the raw material gas supplied into the water storage tank. Gas and water can be brought into sufficient contact. Moreover, the bubble of source gas can be made small and the contact area with water can be enlarged.

請求項４記載の加湿ガス供給システムは、混合昇温部は、下部に混合部を備え、上部に混合部で生成した生加湿ガスを加熱して過熱加湿ガスを生成させる昇温部を備えているので、水蒸気及び原料ガスを確実に過熱加湿ガスにできる。 The humidified gas supply system according to claim 4 , wherein the mixing temperature raising unit includes a mixing unit at a lower part, and a heating unit for heating the raw humidified gas generated at the mixing unit to generate an overheated humidified gas. Therefore, the steam and the raw material gas can be reliably used as the superheated humidified gas.

続いて、添付した図面を参照しつつ、本発明を具体化した実施の形態につき説明し、本発明の理解に供する。
ここで、図１は本発明の一実施の形態に係る加湿ガス供給システムの説明図、図２は同加湿ガス供給システムの受皿の平面図、図３は同加湿ガス供給システムを用いた製品加湿ガスの温度制御を示すフローチャート、図４は同加湿ガス供給システムを用いた製品加湿ガスの湿度制御を示すフローチャートである。 Next, embodiments of the present invention will be described with reference to the accompanying drawings for understanding of the present invention.
Here, FIG. 1 is an explanatory view of a humidified gas supply system according to an embodiment of the present invention, FIG. 2 is a plan view of a tray of the humidified gas supply system, and FIG. 3 is a product humidifier using the humidified gas supply system. FIG. 4 is a flowchart showing the humidity control of the product humidified gas using the humidified gas supply system.

図１及び図２を参照して、本発明の一実施の形態に係る加湿ガス供給システム１０について説明する。
加湿ガス供給システム１０は、固体高分子型の燃料電池１０ａに所定の流量、温度及び湿度の製品加湿ガスを連続的に供給する装置であって、製品加湿ガスに最終的に含まれる水量に見合う原水を供給する水供給手段１１と、原料ガスを供給するガス供給手段１２と、水供給手段１１から供給された原水を加熱して水蒸気を発生させる蒸発部１３とを有している。 With reference to FIG.1 and FIG.2, the humidified gas supply system 10 which concerns on one embodiment of this invention is demonstrated.
The humidified gas supply system 10 is a device that continuously supplies a product humidified gas having a predetermined flow rate, temperature, and humidity to the polymer electrolyte fuel cell 10a, and corresponds to the amount of water finally contained in the product humidified gas. A water supply unit 11 that supplies raw water, a gas supply unit 12 that supplies raw material gas, and an evaporation unit 13 that heats the raw water supplied from the water supply unit 11 to generate water vapor are provided.

また、加湿ガス供給システム１０は、蒸発部１３及びガス供給手段１２から、それぞれ供給される水蒸気及び原料ガスを混合して、生加湿ガスを生成させると共に、生成した生加湿ガスを過熱して、過熱加湿ガスを生成させる混合昇温部１４と、混合昇温部１４で生成した過熱加湿ガスを降温し、所定温度の製品加湿ガスを生成する冷却部１６と、この生成した製品加湿ガスを保温あるいは昇温して所定値に保つ温調部１７とを有している。なお、蒸発部１３、混合昇温部１４、及び冷却部１６は、高さ方向に下から順に積み上げられている。以下、詳しく説明する。 Further, the humidified gas supply system 10 mixes the water vapor and the raw material gas supplied from the evaporation unit 13 and the gas supply unit 12, respectively, generates raw humidified gas, and superheats the generated raw humidified gas, A mixing temperature raising unit 14 that generates superheated humidified gas, a cooling unit 16 that generates a product humidified gas at a predetermined temperature by lowering the temperature of the superheated humidified gas generated by the mixed temperature rising unit 14, and the generated product humidified gas are kept warm. Or it has the temperature control part 17 which heats up and maintains to a predetermined value. In addition, the evaporation part 13, the mixing temperature rising part 14, and the cooling part 16 are stacked in order from the bottom in the height direction. This will be described in detail below.

水供給手段１１は、原水（例えば、２μＳ／ｃｍ以下、好ましくは１μＳ／ｃｍ以下の純水）を貯留する原水タンク２０と、原水タンク２０に貯留された原水を原水供給管２１を介して蒸留部１３の受皿３１に供給する定量ポンプ２２を有している。定量ポンプ２２は、回転数によって供給する液量が決まり、原水に含まれる気体によって水の量が異なるため、定量ポンプ２２の上流側には、真空ポンプ２３を設けている。更に、原水供給管２１には、原水を予め加熱する配管ヒータ２４が設けられている。なお、蒸発部１３内壁に原水供給管２１を沿わせ、加熱された原水を受皿３１に供給してもよい。 The water supply means 11 includes a raw water tank 20 for storing raw water (for example, pure water of 2 μS / cm or less, preferably 1 μS / cm or less), and raw water stored in the raw water tank 20 is distilled through a raw water supply pipe 21. The metering pump 22 is supplied to the tray 31 of the unit 13. The metering pump 22 is provided with a vacuum pump 23 on the upstream side of the metering pump 22 because the amount of liquid supplied depends on the number of revolutions and the amount of water varies depending on the gas contained in the raw water. Further, the raw water supply pipe 21 is provided with a pipe heater 24 for preheating raw water. Note that the raw water supply pipe 21 may be placed along the inner wall of the evaporation unit 13 and the heated raw water may be supplied to the tray 31.

また、ガス供給手段１２は、原料ガス、例えば、水素を貯留しているガスボンベ２５と、ガスボンベ２５から蒸発部１３の下部へ原料ガスを送るガス供給管２６と、ガス供給管２６に設けられ、供給するガスの流量を調節する減圧弁及び流調弁を有するガス流量調節器２７を有している。ガス供給管２６の先部は、原料ガスを小さな気泡として供給できる形状となっている。また、ガス供給管２６のガス流量調節器２７の下流側には、原料ガスを加熱する配管ヒータ２８が取付けられている。 The gas supply means 12 is provided in a gas cylinder 25 that stores a raw material gas, for example, hydrogen, a gas supply pipe 26 that sends the raw material gas from the gas cylinder 25 to the lower part of the evaporation unit 13, and the gas supply pipe 26. A gas flow controller 27 having a pressure reducing valve and a flow control valve for adjusting the flow rate of the gas to be supplied is provided. The tip of the gas supply pipe 26 has a shape capable of supplying the source gas as small bubbles. A pipe heater 28 for heating the source gas is attached to the gas supply pipe 26 downstream of the gas flow rate regulator 27.

蒸発部１３は、水供給手段１１から供給される原水を貯留する貯水槽３０と、貯水槽３０に貯留された原水の水面よりも高い位置に配置され、水供給手段１１から供給される原水
を一旦受ける受皿３１と、上部が受皿３１に貫入して設置され、蒸発部１３内を加熱し、供給された原水を水蒸気とする発熱体の一例である１又は２以上、例えば５本の棒状の第１の加熱ヒータ３２からなる第１の加熱手段を有している。ここで、受皿３１には、それぞれの第１の加熱ヒータ３２と隙間（例えば、０．５〜３ｍｍ）を空けて設けられた貫通孔３３と、受けた原水を下方にしみ出させる複数の微小隙間（例えば、０．５〜３ｍｍの微小孔）３４とを有している。 Evaporation section 13, a water tank 30 for storing water supplied from the water supply means 11 is disposed at a position higher than the water level of the raw water stored in the water storage tank 30, water supplied from the water supply means 11 1 or 2 or more, for example, five rods, which are an example of a heating element that is installed once so that the upper part penetrates into the receiving tray 31 and heats the inside of the evaporator 13 and uses the supplied raw water as water vapor. The first heating means including the first heater 32 is provided. Here, the receiving tray 31 is provided with a through hole 33 provided with a gap (for example, 0.5 to 3 mm) from each of the first heaters 32 and a plurality of minute holes that ooze the received raw water downward. And a gap (for example, a microhole of 0.5 to 3 mm) 34.

ここで、受皿３１に供給された原水は、第１の加熱ヒータ３２と貫通孔３３の隙間又は微小隙間３４（即ち、流通部）を通って下方にしみ出て貯水槽３０に貯留される。第１の加熱ヒータ３２と貫通孔３３の隙間を通った原水は、第１の加熱ヒータ３２を伝わり加熱されながら下方に落ちて貯水槽３０に溜まる。また、微小隙間３４を通った原水は、微小な隙間からしみ出るので、しずく（小さな水滴）となって、表面積が増大する。これによって、しずくとなった原水は加熱され貯水槽３０に溜まる。 Here, the raw water supplied to the tray 31 oozes downward through the gap between the first heater 32 and the through-hole 33 or the minute gap 34 (that is, the circulation portion) and is stored in the water storage tank 30. The raw water that has passed through the gap between the first heater 32 and the through-hole 33 falls through the first heater 32 while being heated and accumulates in the water storage tank 30. Moreover, since the raw water that has passed through the minute gap 34 oozes out from the minute gap, it becomes a drop (small water droplet) and the surface area increases. Thus, raw water becomes droplets are heated accumulated in the water storage tank 30.

水供給手段１１から供給される原水を一旦受皿３１に受けて加熱することによって、水供給手段１１から供給される冷たい原水が加熱されて、貯水槽３０内の熱い原水と混合されるので、貯水槽３０内の原水の温度低下が起こり難くなる。また、貯水槽３０の外側周囲には、熱の放散による温度低下を起こり難くする保温手段の一例である貯水槽用ヒータ３６が取付けられている。また、保温手段は、断熱材を使用してもよい。なお、図１は、ヒータ３６を貯水槽３０の外側周囲のみではなく、蒸発部１３の外側周囲全体に取付けた状態を示している。 By heating receive once pan 31 raw water supplied from the water supply unit 11, the cold water supplied from the water supply means 11 is heated, since it is mixed with the hot raw water of the water storage tank 30, temperature drop of raw water water storage tank 30 is less likely to occur. Further, around the outside of the water tank 30, a water tank heater 36, which is an example of heat retaining means that makes it difficult for the temperature to decrease due to heat dissipation, is attached. Moreover, you may use a heat insulating material for a heat retention means. Incidentally, FIG. 1 is not a heater 36 only the outer periphery of the water storage tank 30, and shows a state attached to the entire outer periphery of the evaporator section 13.

また、貯水槽３０には、球状固体物の一例であるアルミナ系セラミックのボール３５が充填され、貯水槽３０に溜まった原水中に浮遊している。ボール３５は、直径２〜５ｍｍの実質的に球形であり、比重も軽く、貯水槽３０内の原水の対流によって、ボール３５も上下に移動することができる。また、ボール３５は、ガス供給手段１２より供給された原料ガスの気泡の上昇の抵抗となると共に、ガス供給手段１２から供給された原料ガスの気泡を更に小さくすることができる。また、第１の加熱ヒータ３２によって、貯水槽３０内の原水を加熱して水蒸気とする。 The water storage tank 30 is filled with alumina ceramic balls 35, which are an example of a spherical solid, and floats in the raw water accumulated in the water storage tank 30. The ball 35 is substantially spherical with a diameter of 2 to 5 mm, has a low specific gravity, and the ball 35 can also move up and down by convection of raw water in the water tank 30. Further, the ball 35 provides resistance to rising of the bubbles of the source gas supplied from the gas supply means 12 and can further reduce the bubbles of the source gas supplied from the gas supply means 12. Further, the raw water in the water storage tank 30 is heated by the first heater 32 into steam.

なお、貯水槽３０内には、図示しない水位計が設けられ、貯水槽３０内の水位が低下した際には、水供給手段１１から原水を供給している。また、貯水槽３０内で、原料ガスを細かい気泡とすると共に、熱量を与えられ、更に従来のバブラー式よりも貯水槽の体積を小さくすることができ、装置を小型化できる。 A water level meter (not shown) is provided in the water tank 30, and raw water is supplied from the water supply means 11 when the water level in the water tank 30 is lowered. Further, in the water tank 30, the raw material gas is made into fine bubbles and given heat, and the volume of the water tank can be made smaller than that of the conventional bubbler type, and the apparatus can be downsized.

混合昇温部１４は、蒸発部１３の上部に配置され、一体的に形成されたチャンバー３７を有している。チャンバー３７内部には、蒸発部１３から供給される水蒸気及び原料ガスを加熱する第２の加熱手段の一例である第２の加熱ヒータ３８が設けられ、チャンバー３７の外側周囲には外部に放散される熱量に対して同等の熱量を加熱するリボン型のチャンバー用ヒータ３９が取付けられている。チャンバー３７内では、蒸発部１３から供給される水蒸気及び原料ガスが混合されて生加湿ガスとされ、更に第２の加熱ヒータ３８で生加湿ガスが加熱されて過熱加湿ガスとされる。 The mixed temperature raising unit 14 is disposed above the evaporation unit 13 and includes a chamber 37 that is integrally formed. Inside the chamber 37, a second heater 38, which is an example of a second heating unit that heats the water vapor and source gas supplied from the evaporation unit 13, is provided, and is diffused to the outside around the chamber 37. A ribbon-type chamber heater 39 that heats an amount of heat equivalent to the amount of heat generated is attached. In the chamber 37, the water vapor and the raw material gas supplied from the evaporation unit 13 are mixed to form a raw humidified gas, and the raw humidified gas is further heated by the second heater 38 to be a superheated humidified gas.

ここで、チャンバー３７内では、原料ガスと水蒸気の流れによって、自然に両者が混合されるが、混合を促進する必要があれば、チャンバー３７内に邪魔板等を置いて、ガスの流れによって、積極的に乱流を発生させてもよい。また、邪魔板等によって、生加湿ガスが第２の加熱ヒータ３８に接近するように誘導し、生加湿ガスを効率よく昇温させてもよい。混合昇温部は、下部に蒸発部及びガス供給手段から、それぞれ供給される水蒸気及び原料ガスを混合して、生加湿ガスを生成させる混合部を、更にその上部に混合部で生成した生加湿ガスを加熱して、過熱加湿ガスを生成させる昇温部を設けてもよい。 Here, in the chamber 37, both are naturally mixed by the flow of the source gas and the water vapor, but if it is necessary to promote the mixing, a baffle plate or the like is placed in the chamber 37, and the flow of the gas You may generate a turbulent flow positively. Further, the raw humidified gas may be guided by a baffle plate or the like so as to approach the second heater 38 to efficiently raise the temperature of the raw humidified gas. The mixing temperature raising unit has a mixing unit for generating raw humidified gas by mixing water vapor and raw material gas supplied from an evaporation unit and a gas supply unit at the lower part, and further generating raw humidified at the upper part by the mixing unit. You may provide the temperature rising part which heats gas and produces | generates superheated humidification gas.

冷却部１６は、チャンバー３７の上部に配置される熱交換器４０と、熱交換器４０に冷却媒体（以下、単に冷媒という）、例えば、２０℃の水を貯留する冷媒槽４１と、冷媒槽４１から熱交換器４０に冷媒を供給する冷媒配管４２及びポンプ４３とを有している。チャンバー３７で生成した過熱加湿ガスは、熱交換器４０によって、所定温度まで降温されて製品加湿ガスとされる。 The cooling unit 16 includes a heat exchanger 40 disposed in an upper portion of the chamber 37, a refrigerant tank 41 that stores a cooling medium (hereinafter simply referred to as a refrigerant), for example, water at 20 ° C., and a refrigerant tank. A refrigerant pipe 42 and a pump 43 for supplying refrigerant from 41 to the heat exchanger 40 are provided. The superheated humidified gas generated in the chamber 37 is lowered to a predetermined temperature by the heat exchanger 40 to become a product humidified gas.

また、温調部１７は、冷却部１６の下流側、つまり、上部に設けられ、冷却部１６によって生成した製品加湿ガスを保温する配管ヒータ４５を有し、所定温度の製品加湿ガスを燃料電池１０ａに供給している。なお、温調部１７は、生成した製品加湿ガスを燃料電池１０ａまで供給する製品ガス供給配管４６を有し、製品ガス供給配管４６にも配管ヒータ４５が取付けられ、製品加湿ガスの温度低下を防止している。また、製品ガス供給配管には、冷却部１６で生成した製品加熱ガスを加熱して所定温度よりも高温の加湿ガスとし、外部への熱の放散による温度低下を防止する加熱装置と、更にこの加熱された加湿ガスを燃料電池１０ａに供給する前に所定温度冷却して製品加湿ガスとする冷却装置とを設けることもできる。 The temperature control unit 17 includes a pipe heater 45 that is provided downstream of the cooling unit 16, that is, at an upper portion thereof, and retains the product humidified gas generated by the cooling unit 16. 10a. The temperature control unit 17 includes a product gas supply pipe 46 that supplies the generated product humidified gas to the fuel cell 10a. A pipe heater 45 is also attached to the product gas supply pipe 46 to reduce the temperature of the product humidified gas. It is preventing. The product gas supply pipe has a heating device that heats the product heating gas generated in the cooling unit 16 to a humidified gas higher than a predetermined temperature, and prevents a temperature drop due to heat dissipation to the outside. Before supplying the heated humidified gas to the fuel cell 10a, it is possible to provide a cooling device that cools the fuel cell 10a to a product humidified gas by cooling it at a predetermined temperature.

また、加湿ガス供給システム１０には、複数、例えば、６つの温度センサ４７、４８、５０、５２、５３、６１が取付けられている。蒸発部１３には、貯水槽３０に貯留される原水の温度を測定する温度センサ４７と、受皿３１上の温度を測定する温度センサ４８が配置されている。ここで、温度センサ４７による貯水槽３０内の原水の温度が所定値となるように、第１の加熱ヒータ３２を制御する温度調整用制御ループ５５を有している。 In addition, a plurality of, for example, six temperature sensors 47, 48, 50, 52, 53, 61 are attached to the humidified gas supply system 10. The evaporation unit 13 is provided with a temperature sensor 47 that measures the temperature of the raw water stored in the water storage tank 30 and a temperature sensor 48 that measures the temperature on the tray 31. Here, as the temperature of the raw water water storage tank 30 by the temperature sensor 47 becomes a predetermined value, and a temperature adjustment control loop 55 for controlling the first heater 32.

また、チャンバー３７内には、チャンバー３７内の上部に設けられ、チャンバー３７内で生成する過熱加湿ガスの温度を測定する温度センサ５０と、温度センサ５０による測定値によって、チャンバー３７内を過熱する第２の加熱ヒータ３８を制御して、過熱加湿ガスの温度を所定値とする温度調整用制御ループ５６とを有している。 Further, in the chamber 37, the chamber 37 is heated by a temperature sensor 50 that is provided in an upper portion of the chamber 37 and measures the temperature of the superheated humidified gas generated in the chamber 37, and the measured value by the temperature sensor 50. It has a temperature adjustment control loop 56 that controls the second heater 38 to set the temperature of the superheated humidified gas to a predetermined value.

なお、チャンバー３７内の下部、及びチャンバー３７の外部にそれぞれ温度センサを配置し、チャンバー３７下部の温度センサによって、蒸発部１３から供給される水蒸気及び原料ガスの温度を測定し、チャンバー３７上部の温度センサ５０によって、水蒸気及び原料ガスが混合して加熱された過熱加湿ガスの温度を測定して、チャンバー３７外部の温度センサで測定された温度から、チャンバー３７外部に放散される熱量を計算し、この放散された熱量と同等の熱量をチャンバー用ヒータ３９を制御してチャンバー３７に与える温度調整用制御ループを設けることもできる。 A temperature sensor is disposed in the lower part of the chamber 37 and outside the chamber 37, and the temperatures of the water vapor and the source gas supplied from the evaporation unit 13 are measured by the temperature sensors in the lower part of the chamber 37, The temperature of the superheated humidified gas heated by mixing the steam and the raw material gas is measured by the temperature sensor 50, and the amount of heat dissipated outside the chamber 37 is calculated from the temperature measured by the temperature sensor outside the chamber 37. A temperature adjustment control loop that controls the chamber heater 39 to supply the chamber 37 with a heat amount equivalent to the dissipated heat amount may be provided.

また、温調部１７には、温調部１７の内部及び外部にそれぞれ温度センサ５２、５３が配置されている。温調部１７内部の温度センサ５２では、冷却部１６で冷却された製品加湿ガスの温度が測定されている。この温度が所定値となるように冷却部１６のポンプ４３から供給する冷媒の量を調整する温度調整用制御ループ５７がインバータ５８を介してポンプ４３に設けられている。更に、温調部１７外部の温度センサ５３で測定された温度から、温調部１７外部に放散される熱量が計算できる。また、配管ヒータ４５を制御して、この計算された熱量を温調部１７に与える温度調整用制御ループ５９が設けられている。更に、温調部１７は、温調部１７内の製品加湿ガスの湿度を測定する湿度センサ６０が設けられている。また、温調部１７内の最下流には温度センサ６１が設けられ、燃料電池１０ａに供給される製品加湿ガスの温度を測定している。 In addition, temperature sensors 52 and 53 are arranged in the temperature control unit 17 inside and outside the temperature control unit 17, respectively. The temperature sensor 52 inside the temperature control unit 17 measures the temperature of the product humidified gas cooled by the cooling unit 16. A temperature adjustment control loop 57 that adjusts the amount of refrigerant supplied from the pump 43 of the cooling unit 16 so that the temperature becomes a predetermined value is provided in the pump 43 via an inverter 58. Further, the amount of heat dissipated outside the temperature control unit 17 can be calculated from the temperature measured by the temperature sensor 53 outside the temperature control unit 17. In addition, a temperature adjustment control loop 59 that controls the pipe heater 45 and supplies the calculated heat amount to the temperature adjustment unit 17 is provided. Further, the temperature control unit 17 is provided with a humidity sensor 60 that measures the humidity of the product humidified gas in the temperature control unit 17. Further, a temperature sensor 61 is provided on the most downstream side in the temperature control unit 17, and measures the temperature of the product humidified gas supplied to the fuel cell 10a.

次に、本発明の一実施の形態に係る加湿ガス供給システム１０を使用した燃料電池に供給する加湿ガスの供給方法について説明する。
原水タンク２０に貯留された原水を真空ポンプ２３で脱気し、原水内の気体を除去する。更に、定量ポンプ２２を駆動し、原水供給管２１を介して、燃料電池１０ａに供給する製品加湿ガスに最終的に含まれる水量に見合う原水を蒸発部１３の受皿３１に供給する。また、受皿３１への原水の供給の際には、貯水槽３０の外側周囲に原水供給管２１を巻き付け、予め原水を加熱してもよく、貯水槽３０内を加熱する加熱手段を設けてもよい。なお、蒸発部１３に供給する原水が多い場合には、水温の急激な低下を防止するため、配管ヒータ２４によって、供給する原水を予め加熱してもよい。 Next, a method for supplying humidified gas supplied to the fuel cell using the humidified gas supply system 10 according to one embodiment of the present invention will be described.
The raw water stored in the raw water tank 20 is degassed by the vacuum pump 23, and the gas in the raw water is removed. Further, the metering pump 22 is driven, and raw water corresponding to the amount of water finally contained in the product humidified gas supplied to the fuel cell 10 a is supplied to the tray 31 of the evaporation unit 13 via the raw water supply pipe 21. In addition, when supplying raw water to the tray 31, the raw water supply pipe 21 may be wound around the outside of the water storage tank 30 to heat the raw water in advance, or a heating means for heating the inside of the water storage tank 30 may be provided. Good. In addition, when there is much raw | natural water supplied to the evaporation part 13, in order to prevent the rapid fall of water temperature, you may heat the raw | natural water supplied with the piping heater 24 previously.

受皿３１に供給された原水は、第１の加熱ヒータ３２及び貫通孔３３の隙間、微小隙間３４を通って、第１の加熱ヒータ３２によって加熱され、下方の貯水槽３０に溜められる。更に、貯水槽３０内の原水の温度を温度センサ４７で測定し、この温度が所定値、例えば、６０〜９０℃（原料ガスの流量によって、製造する製品加湿ガスの温度よりも１〜２５℃高くする）となるように、温度調整用制御ループ５５で制御された第１の加熱ヒータ３２で貯水槽３０内の原水を加熱する。 Raw water supplied to the pan 31, the gap of the first heater 32 and the through holes 33, through the minute gap 34 is heated by the first heater 32, it is accumulated in the water storage tank 30 below. Furthermore, the temperature of the raw water in the water storage tank 30 is measured by the temperature sensor 47, and this temperature is a predetermined value, for example, 60 to 90 ° C. The raw water in the water storage tank 30 is heated by the first heater 32 controlled by the temperature adjustment control loop 55.

また、ガスボンベ２５からガス流量調節器２７によって流量が制御された原料ガス（水素）をガス供給管２６を介して、蒸発部１３の貯水槽３０に供給する。また、ガス供給管２６に取付けられた配管ヒータ２８で、予め原料ガスを貯水槽３０内と実質的同じ温度まで加熱することが好ましい。ガス供給手段１２より供給された原料ガスの気泡は、貯水槽３０に溜まった原水中に浮遊しているボール３５によって上昇の抵抗を受け、原料ガスと水とが十分に接触して原料ガスが加湿される。更に、ボール３５によって、原料ガスの気泡を小さくすることができ、気泡の表面積が増えるため、原料ガスがより加湿され易くなる。 Further, the raw material gas flow rate is controlled by the gas regulator 27 from the gas cylinder 25 (hydrogen) through the gas supply pipe 26, and supplies the water storage tank 30 of the evaporator section 13. In addition, it is preferable to heat the raw material gas in advance to substantially the same temperature as in the water storage tank 30 by a pipe heater 28 attached to the gas supply pipe 26. The bubbles of the raw material gas supplied from the gas supply means 12 are subjected to rising resistance by the balls 35 floating in the raw water accumulated in the water storage tank 30, and the raw material gas and the water are sufficiently brought into contact with each other. Humidified. Furthermore, since the bubbles of the source gas can be reduced by the balls 35 and the surface area of the bubbles is increased, the source gas is more easily humidified.

また、貯水槽３０の外側周囲に設けられた貯水槽用ヒータ３６によって、熱の放散による温度低下を起こり難くできる。貯水槽３０内の原水は第１の加熱ヒータ３２で加熱されて水蒸気となり、原料ガスは貯水槽３０内に通すことにより加湿され、この水蒸気と原料ガスが混合昇温部１４で混合されて生加湿ガスとなる。 Further, the water tank heater 36 provided around the outside of the water tank 30 makes it difficult to cause a temperature drop due to heat dissipation. Raw water storage tank 30 is heated by the first heater 32 becomes steam, raw material gas is humidified by passing through a water storage tank 30, the steam and the raw material gas is mixed in the mixing Atsushi Nobori section 14 It becomes raw humidified gas.

チャンバー３７内で生成した過熱加湿ガスは、冷却部１６の熱交換器４０によって所定温度、つまり、製品加湿ガスの温度（例えば、６０〜９０℃）まで降温して製品加湿ガスとする。ここで、温調部１７の温度センサ５２による製品加湿ガスの温度が所定温度と異なる場合には、温度調整用制御ループ５７によって、熱交換器４０に供給する冷媒の量をポンプ４３で制御して、製品加湿ガスの温度を一定とする。なお、熱交換器４０によって冷却された過熱加湿ガス中の水蒸気の一部が水滴となった際には、この水滴が落下して下部に配置された貯水槽３０に貯留される。更に、生成した製品加湿ガスは、温調部１７の配管ヒータ４５によって、所定温度とされて燃料電池１０ａに供給される。 The superheated humidified gas generated in the chamber 37 is lowered to a predetermined temperature, that is, the temperature of the product humidified gas (for example, 60 to 90 ° C.) by the heat exchanger 40 of the cooling unit 16 to obtain the product humidified gas. Here, when the temperature of the product humidified gas by the temperature sensor 52 of the temperature control unit 17 is different from the predetermined temperature, the amount of refrigerant supplied to the heat exchanger 40 is controlled by the pump 43 by the temperature adjustment control loop 57. The product humidified gas temperature is kept constant. In addition, when a part of water vapor in the superheated humidified gas cooled by the heat exchanger 40 becomes water droplets, the water droplets are dropped and stored in the water storage tank 30 disposed in the lower part. Further, the generated product humidified gas is supplied to the fuel cell 10a at a predetermined temperature by the pipe heater 45 of the temperature control unit 17.

なお、熱交換器４０を経て生成した製品加湿ガスの温度が所定温度よりも高い場合には、熱交換器４０に供給する冷媒の流量を増やし、低い場合には冷媒の流量を少なくして、製品加湿ガスの温度を調整することができる。また、燃料電池１０ａに供給する製品加湿ガスの流量を多くする場合には、水供給手段１１及びガス供給手段１２からそれぞれ原水及び原料ガスの供給量を増やし、また、少なくする場合には、それぞれの供給量を減らせばよい。 When the temperature of the product humidified gas generated through the heat exchanger 40 is higher than a predetermined temperature, the flow rate of the refrigerant supplied to the heat exchanger 40 is increased, and when the temperature is low, the flow rate of the refrigerant is decreased. Product humidifying gas temperature can be adjusted. Further, when the flow rate of the product humidifying gas supplied to the fuel cell 10a is increased, the supply amounts of the raw water and the raw material gas are increased from the water supply means 11 and the gas supply means 12, respectively. It is sufficient to reduce the supply amount.

次に、図１及び図３を参照して、本発明の一実施の形態に係る加湿ガス
供給システム１０を使用した加湿ガスの供給方法における製造加湿ガスの温度制御について説明する。
加湿ガス供給システム１０では製造される製品加湿ガスの温度Ｔpを、所定時間ｔa（１秒間〜１０秒間、例えば５秒間）毎に温度センサ５２で測定している。ここで、製品加湿ガスの温度Ｔpが、設定温度Ｔs（６０〜９０℃、例えば７５℃）の許容範囲内（Ｔs＋α1≧Ｔp≧Ｔs−α2、０．５＞α1、α2＞０、例えばα1＝０．３℃、α2＝０．３℃）となるように、蒸発部１３内の原水に熱量を与える第１の加熱ヒータ３２と、冷却部１６の熱交換器４０へ供給する冷却媒体の流量を調整するポンプ４３とを制御する。以下、詳しく説明する。 Next, temperature control of the manufactured humidified gas in the humidified gas supply method using the humidified gas supply system 10 according to one embodiment of the present invention will be described with reference to FIGS. 1 and 3.
In the humidified gas supply system 10, the temperature T p of the product humidified gas to be manufactured is measured by the temperature sensor 52 every predetermined time t a (1 second to 10 seconds, for example, 5 seconds). Here, the temperature T p of the product humidified gas is within the allowable range of the set temperature T s (60 to 90 ° C., for example, 75 ° C.) (T s + α 1 ≧ T p ≧ T s −α 2 , 0.5> α 1 , α 2 > 0, for example, α 1 = 0.3 ° C., α 2 = 0.3 ° C.), a first heater 32 that gives heat to the raw water in the evaporation unit 13, and a cooling unit 16 And a pump 43 that adjusts the flow rate of the cooling medium supplied to the heat exchanger 40. This will be described in detail below.

（１）製品加湿ガスの温度Ｔpが、その設定温度Ｔsの許容範囲内（Ｔs＋α1≧Ｔp≧Ｔs−α2）である場合には、第１の加熱ヒータ３２の熱量（設定温度）を保持して、原水に与える熱量を保持すると共に、熱交換器４０へ供給する冷却媒体の流量も保持する。
（２）製品加湿ガスの温度Ｔpが、Ｔs＋α1を超え、Ｔs＋α1＋α3（α3＞０）以下である場合には、原水に与える熱量を低減するために、第１の加熱ヒータ３２の電源を切るか、第１の加熱ヒータ３２の温度を下げて、原水の温度Ｔj1をＴj1−β1（β1＞０）とすると共に、熱交換器４０へ供給する冷却媒体の流量を保持する。 (1) When the temperature T p of the product humidified gas is within the allowable range of the set temperature T s (T s + α 1 ≧ T p ≧ T s −α 2 ), the amount of heat of the first heater 32 (Set temperature) is maintained, the amount of heat applied to the raw water is maintained, and the flow rate of the cooling medium supplied to the heat exchanger 40 is also maintained.
(2) temperature T p of the product humidified gas is greater than the T s + alpha 1, if T s + α 1 + α 3 (α 3> 0) or less, in order to reduce the amount of heat applied to the raw water, a first The heater 32 is turned off or the temperature of the first heater 32 is lowered to set the raw water temperature T j1 to T j1 -β 1 (β 1 > 0) and to the heat exchanger 40. Maintain the flow rate of the cooling medium.

（３）製品加湿ガスの温度Ｔpが、Ｔs＋α1＋α3（α3＞０）を超えている場合には、原水に与える熱量を低減するために、第１の加熱ヒータ３２の電源を切るか、第１の加熱ヒータ３２の温度を下げて、原水の温度Ｔj2をＴj2−β2（β2＞０）とすると共に、冷却部１６のポンプ４３によって、熱交換器４０への冷却媒体の流量を増加して、過熱加湿ガスをより冷却する。
（４）製品加湿ガスの温度Ｔpが、Ｔs−α2よりも低い場合には、原水に与える熱量を増加させるために、第１の加熱ヒータ３２の温度を上げて、前記原水の温度Ｔj3をＴj3＋β3（β3＞０）とすると共に、熱交換器４０へ供給する冷却媒体の流量を減少して、過熱加湿ガスの冷却を弱め、製品加湿ガスの温度を高くする。 (3) When the temperature T p of the product humidified gas exceeds T s + α 1 + α 3 (α 3 > 0), the power source of the first heater 32 is used to reduce the amount of heat given to the raw water. Or the temperature of the first heater 32 is lowered to set the temperature T j2 of the raw water to T j2 −β 2 (β 2 > 0) and to the heat exchanger 40 by the pump 43 of the cooling unit 16. The cooling medium flow rate is increased to further cool the superheated humidified gas.
(4) When the temperature T p of the product humidifying gas is lower than T s -α 2 , the temperature of the raw water is increased by increasing the temperature of the first heater 32 in order to increase the amount of heat given to the raw water. T j3 is set to T j3 + β 3 (β 3 > 0), the flow rate of the cooling medium supplied to the heat exchanger 40 is decreased, the cooling of the superheated humidified gas is weakened, and the temperature of the product humidified gas is increased.

次に、図１及び図４を参照して、本発明の一実施の形態に係る加湿ガス供給システム１０を使用した加湿ガスの供給方法における製造加湿ガスの湿度制御について説明する。
加湿ガス供給システム１０で製造される製品加湿ガスの湿度Ｓpを、所定時間ｔa（１０秒間〜１０分間、例えば１０秒間）毎に湿度センサ６０で測定する。ここで、製品加湿ガスの湿度Ｓpが、設定湿度Ｓs（相対湿度８０〜１００％、例えば９０％）の許容範囲内（Ｓs＋γ1≧Ｓp≧Ｓs−γ2、γ1＞０、γ2＞０）となるように、混合昇温部１４内の第２の加熱ヒータ３８を調整する。以下、詳しく説明する。 Next, with reference to FIG.1 and FIG.4, the humidity control of the manufacture humidification gas in the humidification gas supply method using the humidification gas supply system 10 which concerns on one embodiment of this invention is demonstrated.
Humidity S p products humidified gas produced in a humidified gas supply system 10, the predetermined time t a (10 seconds to 10 minutes, for example 10 seconds) is measured by a humidity sensor 60 for each. Here, the humidity S p of the product humidified gas is within an allowable range of the set humidity S s (relative humidity 80 to 100%, for example 90%) (S s + γ 1 ≧ S p ≧ S s −γ 2 , γ 1 > 0, γ 2 > 0), the second heater 38 in the mixed temperature raising unit 14 is adjusted. This will be described in detail below.

（１）製品加湿ガスの湿度Ｓpが、その許容範囲内である場合には、第２の加熱ヒータ３８の熱量（設定温度）を保持する。
（２）製品加湿ガスの湿度Ｓpが、Ｓs＋γ1を超えている場合には、過熱加湿ガスの温度Ｔk1をδ1℃（δ1＞０）上げるために、第２の加熱ヒータ３８の温度を上げて、製品加湿ガスの湿度Ｓpを低減させる。
（３）製品加湿ガスの湿度ＳpがＳs−γ2よりも低い場合には、過熱加湿ガスの温度Ｔk2をδ2℃（δ2＞０）下げるために、第２の加熱ヒータ３８の電源を切るか、第２の加熱ヒータ３８の温度を下げて、製品加湿ガスの湿度Ｓpを増加させる。 (1) Humidity S p products humidified gas, in which case it is within the allowable range, it holds the heat of second heater 38 (set temperature).
(2) If the humidity S p of the product humidified gas exceeds S s + γ 1 , the second heater is used to increase the temperature T k1 of the superheated humidified gas by δ 1 ° C (δ 1 > 0). 38 by raising the temperature of, reducing the humidity S p products humidified gas.
(3) When the humidity S p of the product humidified gas is lower than S s −γ 2 , the second heater 38 is used to lower the temperature T k2 of the superheated humidified gas by δ 2 ° C (δ 2 > 0). off of the power supply or, by lowering the temperature of the second heater 38, thereby increasing the humidity S p products humidified gas.

本発明は、前記した実施の形態に限定されるものではなく、本発明の要旨を変更しない範囲での変更は可能であり、例えば、前記した実施の形態や変形例の一部又は全部を組み合わせて本発明の加湿ガス供給システムを構成する場合も本発明の権利範囲に含まれる。
例えば、前記実施の形態では、原料ガスとして水素を用いたが、空気、水素と二酸化炭素の混合気体、水素と一酸化炭素の混合気体等を用いてもよい。 The present invention is not limited to the above-described embodiment, and can be changed without changing the gist of the present invention. For example, a part or all of the above-described embodiment and modification examples are combined. The case where the humidified gas supply system of the present invention is configured is also included in the scope of the right of the present invention.
For example, in the above embodiment, hydrogen is used as the source gas, but air, a mixed gas of hydrogen and carbon dioxide, a mixed gas of hydrogen and carbon monoxide, or the like may be used.

また、前記実施の形態では、水供給手段において、回転数によって一定水量の原水を供給する定量ポンプを用いたが、一定水量の原水を供給できればよく、例えば、圧力によって供給水量を変えるポンプを用いてもよい。また、冷却部としては、高温の過熱加湿ガスを降温する熱交換器に通す冷却媒体としては水を用いたが、通常の冷却媒体も用いることができる。 Further, in the above embodiment, the metering pump that supplies a constant amount of raw water according to the number of rotations is used in the water supply means. However, it is only necessary that a constant amount of raw water can be supplied. May be. As the cooling unit, water is used as a cooling medium that passes through a heat exchanger that cools the high-temperature superheated humidified gas, but a normal cooling medium can also be used.

また、原料ガスを貯水槽に溜まった原水を通して予め加湿して、この加湿された原料ガスと水蒸気を混合したが、発熱体として蒸発部に過熱水蒸気を導入し、蒸発部内を加熱して蒸発部内の原水を昇温すると共に、水供給手段から蒸発部に供給する原水の水量を過熱水蒸気の水量分減らしてもよく、過熱水蒸気により原料ガスを加湿してもよい。また、貯水槽内に充填する球状固体物は、アルミナ系セラミックを用いたが、耐熱強化処理を施したガラス材料も用いることができる。 Further, the raw material gas previously humidified through the raw water accumulating in the water storage tank, but mixing the humidified feed gas and water vapor, introducing superheated steam into the evaporation section as the heating elements, to heat the evaporation portion evaporation While raising the temperature of the raw water in the section, the amount of raw water supplied from the water supply means to the evaporation section may be reduced by the amount of superheated steam, or the raw material gas may be humidified by the superheated steam. The spherical solid product to be filled in the water storage tank has been used alumina ceramics can also be used a glass material subjected to heat hardening.

更に、受皿に貫入する発熱体を５本としたが、１〜４、又は６本以上でもよく、蒸発部内で原水を加熱して水蒸気を発生できればよい。また、受皿に設けた貫通孔及び微小隙間の大きさは、受皿に供給された原水が流下できればよい。特に、微小隙間の大きさは、流下する原水の水滴が小さくなる大きさがよい。更に、受皿に貫通孔を設けず、受皿の下部に発熱体を配置して、微小隙間から流下する原水を加熱してもよい。 Furthermore, although five heating elements penetrated into the saucer were used, the number of heating elements may be 1 to 4, or 6 or more as long as the raw water can be heated in the evaporation section to generate water vapor. Moreover, the magnitude | size of the through-hole and minute gap provided in the saucer should just be able to flow down the raw | natural water supplied to the saucer. In particular, the size of the minute gap is preferably small enough to reduce the water droplets flowing down. Furthermore, without providing a through-hole in a saucer, you may arrange | position a heat generating body to the lower part of a saucer, and heat the raw | natural water which flows down from a micro clearance gap.

本発明の一実施の形態に係る加湿ガス供給システムの説明図である。It is explanatory drawing of the humidification gas supply system which concerns on one embodiment of this invention. 同加湿ガス供給システムの受皿の平面図である。It is a top view of the saucer of the humidification gas supply system. 同加湿ガス供給システムを用いた製品加湿ガスの温度制御を示すフローチャートである。It is a flowchart which shows temperature control of the product humidification gas using the humidification gas supply system. 同加湿ガス供給システムを用いた製品加湿ガスの湿度制御を示すフローチャートである。It is a flowchart which shows the humidity control of the product humidification gas using the humidification gas supply system.

１０：加湿ガス供給システム、１０ａ：燃料電池、１１：水供給手段、１２：ガス供給手段、１３：蒸発部、１４：混合昇温部、１６：冷却部、１７：温調部、２０：原水タンク、２１：原水供給管、２２：定量ポンプ、２３：真空ポンプ、２４：配管ヒータ、２５：ガスボンベ、２６：ガス供給管、２７：ガス流量調節器、２８：配管ヒータ、３０：貯水槽、３１：受皿、３２：第１の加熱ヒータ、３３：貫通孔、３４：微小隙間、３５：ボール、３６：貯水槽用ヒータ、３７：チャンバー、３８：第２の加熱ヒータ、３９：チャンバー用ヒータ、４０：熱交換器、４１：冷媒槽、４２：冷媒配管、４３：ポンプ、４５：配管ヒータ、４６：製品ガス供給配管、４７、４８、５０、５２、５３：温度センサ、５５〜５７：温度調整用制御ループ、５８：インバータ、５９：温度調整用制御ループ、６０：湿度センサ、６１：温度センサ 10: humidified gas supply system, 10a: fuel cell, 11: water supply means, 12: gas supply means, 13: evaporation section, 14: mixing temperature raising section, 16: cooling section, 17: temperature control section, 20: raw water Tank: 21: Raw water supply pipe, 22: Metering pump, 23: Vacuum pump, 24: Pipe heater, 25: Gas cylinder, 26: Gas supply pipe, 27: Gas flow controller, 28: Pipe heater, 30: Water tank, 31: saucer, 32: first heater, 33: through hole, 34: minute gap, 35: ball, 36: heater for water tank, 37: chamber, 38: second heater, 39: heater for chamber 40: heat exchanger, 41: refrigerant tank, 42: refrigerant pipe, 43: pump, 45: pipe heater, 46: product gas supply pipe, 47, 48, 50, 52, 53: temperature sensor, 55-57: Temperature adjustment control Flop, 58: inverter, 59: temperature adjustment control loop 60: humidity sensor 61: temperature sensor

Claims (4)

原料ガスを水蒸気と混合して製品加湿ガスを生成し、該製品加湿ガスを固体高分子型の燃料電池に連続的に供給する加湿ガス供給システムであって、
前記製品加湿ガスに最終的に含まれる水量に見合う原水を供給する水供給手段と、
前記原料ガスを供給するガス供給手段と、
前記水供給手段から供給された原水を加熱すると共に、前記ガス供給手段から前記原料ガスを供給して前記水蒸気を発生させる蒸発部と、
前記蒸発部から供給される前記水蒸気及び前記原料ガスを混合して生加湿ガスを生成させ、この生加湿ガスを加熱して過熱加湿ガスを生成させる混合昇温部と、
前記混合昇温部で生成した過熱加湿ガスを降温し、前記製品加湿ガスを生成する冷却部とを有し、前記蒸発部、前記混合昇温部及び前記冷却部は、高さ方向に下から順に積み上げられて、しかも、
前記蒸発部は、前記水供給手段から供給される原水を貯留し、該原水中には前記ガス供給手段によって供給された原料ガスの気泡の上昇の抵抗となると共に、前記気泡を更に小さくする球状固形物が充填された貯水槽と、
前記貯水槽に貯留された原水の水面よりも高い位置に配置され、前記水供給手段から供給される原水を一旦受ける受皿と、
前記蒸発部内を加熱して供給された前記原水を前記水蒸気とする１又は２以上の発熱体からなる第１の加熱手段とを有し、更に前記ガス供給手段から供給される原料ガスを前記貯水槽に溜められた原水中に通して加湿して、
所定の温度、流量、及び湿度の前記製品加湿ガスを製造することを特徴とする加湿ガス供給システム。 A humidified gas supply system that mixes a raw material gas with water vapor to generate a product humidified gas, and continuously supplies the product humidified gas to a polymer electrolyte fuel cell,
Water supply means for supplying raw water corresponding to the amount of water finally contained in the product humidified gas;
Gas supply means for supplying the source gas;
An evaporator that heats the raw water supplied from the water supply means and supplies the raw material gas from the gas supply means to generate the water vapor;
Mixing the water vapor and the raw material gas supplied from the evaporation unit to generate a raw humidified gas, and heating the raw humidified gas to generate a superheated humidified gas; and
A cooling unit that cools the superheated humidified gas generated in the temperature rising unit and generates the product humidified gas, and the evaporating unit, the mixed temperature rising unit, and the cooling unit are arranged in a height direction from below. Stacked one after another,
The evaporating unit stores the raw water supplied from the water supply unit, and the raw water has a spherical shape that provides resistance to rising of the bubbles of the source gas supplied by the gas supply unit and further reduces the bubbles. A water tank filled with solids;
A tray that is disposed at a position higher than the surface of the raw water stored in the water tank, and that once receives the raw water supplied from the water supply means;
First heating means comprising one or more heating elements that use the raw water supplied by heating the inside of the evaporation section as the water vapor, and the raw material gas supplied from the gas supply means is further stored in the water storage Humidify it through the raw water stored in the tank,
A humidified gas supply system for producing the product humidified gas having a predetermined temperature, flow rate, and humidity. 請求項１記載の加湿ガス供給システムにおいて、前記球状固形物は直径が３〜７ｍｍの球状のボールであることを特徴とする加湿ガス供給システム。 2. The humidified gas supply system according to claim 1, wherein the spherical solid substance is a spherical ball having a diameter of 3 to 7 mm . 請求項１記載の加湿ガス供給システムにおいて、前記発熱体は少なくとも１つは過熱水蒸気であって、該過熱水蒸気を用いて前記蒸発部内を加熱して、前記貯水槽に溜められた前記原水を昇温すると共に、前記水供給手段から前記蒸発部に供給する前記原水の水量を、前記蒸発部内に供給する前記過熱水蒸気の水量分減らすことを特徴とする加湿ガス供給システム。 In a humidified gas supply system of claim 1, wherein said heating element is at least one is a superheated steam, and heating the evaporating portion by using superheated steam, the raw water pooled in the water storage tank A humidified gas supply system characterized in that the raw water supplied from the water supply means to the evaporator is reduced in amount by the amount of the superheated steam supplied into the evaporator while the temperature is raised. 請求項１〜３のいずれか１項に記載の加湿ガス供給システムにおいて、前記混合昇温部は、下部に前記生加湿ガスを生成させる混合部を備え、上部に該混合部で生成した生加湿ガスを加熱して、前記過熱加湿ガスを生成させる昇温部を備えていることを特徴とする加湿ガス供給システム。 The humidification gas supply system of any one of Claims 1-3 WHEREIN: The said mixing temperature rising part is equipped with the mixing part which produces | generates the said raw humidification gas in the lower part, The raw humidification produced | generated by this mixing part in the upper part A humidified gas supply system comprising a temperature raising unit that heats gas to generate the superheated humidified gas.
JP2004010933A 2004-01-19 2004-01-19 Humidification gas supply system Expired - Fee Related JP4615870B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2004010933A JP4615870B2 (en) 2004-01-19 2004-01-19 Humidification gas supply system

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2004010933A JP4615870B2 (en) 2004-01-19 2004-01-19 Humidification gas supply system

Publications (3)

Publication Number Publication Date
JP2005203324A JP2005203324A (en) 2005-07-28
JP2005203324A5 JP2005203324A5 (en) 2006-08-10
JP4615870B2 true JP4615870B2 (en) 2011-01-19

Family

ID=34823511

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2004010933A Expired - Fee Related JP4615870B2 (en) 2004-01-19 2004-01-19 Humidification gas supply system

Country Status (1)

Country Link
JP (1) JP4615870B2 (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6355478B2 (en) * 2014-08-21 2018-07-11 大阪瓦斯株式会社 Fuel cell system
CN109361002B (en) * 2018-11-30 2023-09-19 安徽明天氢能科技股份有限公司 Humidifier for high-power fuel cell test bench

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002025589A (en) * 2000-07-07 2002-01-25 Babcock Hitachi Kk Fuel cell system
JP2004220868A (en) * 2003-01-10 2004-08-05 Tsukasa Sokken Co Ltd Moistening system of fuel cell
JP2005093357A (en) * 2003-09-19 2005-04-07 Ishikawajima Harima Heavy Ind Co Ltd Fuel cell humidifier

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2002025589A (en) * 2000-07-07 2002-01-25 Babcock Hitachi Kk Fuel cell system
JP2004220868A (en) * 2003-01-10 2004-08-05 Tsukasa Sokken Co Ltd Moistening system of fuel cell
JP2005093357A (en) * 2003-09-19 2005-04-07 Ishikawajima Harima Heavy Ind Co Ltd Fuel cell humidifier

Also Published As

Publication number Publication date
JP2005203324A (en) 2005-07-28

Similar Documents

Publication Publication Date Title
US6863268B2 (en) Dew point humidifier (DPH) and related gas temperature control
US6821660B2 (en) Gas humidification device for operation, testing, and evaluation of fuel cells
US6383671B1 (en) Gas humidification device for operation testing and evaluation of fuel cells
US9496575B2 (en) Humidification Unit for Providing a Carrier Gas Containing a Fuel, and Fuel Cell with Such a Humidification Unit
US7118820B2 (en) Method and apparatus for humidification control of an energy recovery device in a fuel cell power plant
US7744070B2 (en) External gas humidifier for fuel cell
JP6610003B2 (en) Fuel cell system
WO2016001938A1 (en) Internal humidification in low temperature pem fuel cell by means of a wick
JP2008075943A (en) Humidifier
JP4615870B2 (en) Humidification gas supply system
JP2005203324A5 (en)
JP6610004B2 (en) Fuel cell system
JP2005038647A (en) Humidified gas supply system
JP4698987B2 (en) Humidified gas supply system and method for supplying the same
JP2005158501A (en) Catalyst combustion device and fuel cell cogeneration system
JP4541903B2 (en) High-speed response type humidified gas supply system and humidified gas supply method
JPH0729591A (en) Solid high polymer fuel cell power generating system
JP2000067893A (en) Solid polymer fuel cell
KR100259021B1 (en) Reactant gas feed assembly for polymer membrane electrolyte fuel cell test station
JP5249501B2 (en) Polymer electrolyte fuel cell
JP2005190967A (en) Starting method of fuel cell system and fuel cell system
JP2008190743A (en) Humidifier and fuel cell system
JP2006189215A (en) Dew point controller and dew point control method for humidifying gas
JP5276740B2 (en) Polymer electrolyte fuel cell
JP2004220868A (en) Moistening system of fuel cell

Legal Events

Date Code Title Description
A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20060626

A621 Written request for application examination

Free format text: JAPANESE INTERMEDIATE CODE: A621

Effective date: 20060626

A131 Notification of reasons for refusal

Free format text: JAPANESE INTERMEDIATE CODE: A131

Effective date: 20100209

A521 Written amendment

Free format text: JAPANESE INTERMEDIATE CODE: A523

Effective date: 20100409

TRDD Decision of grant or rejection written
A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

Effective date: 20101012

A01 Written decision to grant a patent or to grant a registration (utility model)

Free format text: JAPANESE INTERMEDIATE CODE: A01

A61 First payment of annual fees (during grant procedure)

Free format text: JAPANESE INTERMEDIATE CODE: A61

Effective date: 20101021

R150 Certificate of patent or registration of utility model

Free format text: JAPANESE INTERMEDIATE CODE: R150

FPAY Renewal fee payment (event date is renewal date of database)

Free format text: PAYMENT UNTIL: 20131029

Year of fee payment: 3

LAPS Cancellation because of no payment of annual fees