JP3331576B2 - Fuel cell power generation equipment - Google Patents
Fuel cell power generation equipmentInfo
- Publication number
- JP3331576B2 JP3331576B2 JP22278694A JP22278694A JP3331576B2 JP 3331576 B2 JP3331576 B2 JP 3331576B2 JP 22278694 A JP22278694 A JP 22278694A JP 22278694 A JP22278694 A JP 22278694A JP 3331576 B2 JP3331576 B2 JP 3331576B2
- Authority
- JP
- Japan
- Prior art keywords
- gas
- fuel cell
- reformer
- power generation
- blower
- 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
Links
- 239000000446 fuel Substances 0.000 title claims description 54
- 238000010248 power generation Methods 0.000 title claims description 27
- 239000007789 gas Substances 0.000 claims description 52
- 238000002485 combustion reaction Methods 0.000 claims description 18
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 claims description 10
- 238000002407 reforming Methods 0.000 claims description 9
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 claims description 7
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 claims description 6
- 238000011144 upstream manufacturing Methods 0.000 claims description 5
- 230000005611 electricity Effects 0.000 claims description 4
- 239000003546 flue gas Substances 0.000 claims description 4
- 239000002737 fuel gas Substances 0.000 claims description 4
- 239000001257 hydrogen Substances 0.000 claims description 4
- 229910052739 hydrogen Inorganic materials 0.000 claims description 4
- 239000003345 natural gas Substances 0.000 claims description 4
- 229910002092 carbon dioxide Inorganic materials 0.000 claims description 3
- 239000001569 carbon dioxide Substances 0.000 claims description 3
- 239000000567 combustion gas Substances 0.000 claims description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 3
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 claims description 2
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 claims description 2
- 239000001301 oxygen Substances 0.000 claims description 2
- 229910052760 oxygen Inorganic materials 0.000 claims description 2
- 239000011261 inert gas Substances 0.000 description 6
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 5
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 3
- 238000010586 diagram Methods 0.000 description 3
- 229910001873 dinitrogen Inorganic materials 0.000 description 2
- 150000002431 hydrogen Chemical class 0.000 description 2
- 239000002253 acid Substances 0.000 description 1
- 229910002091 carbon monoxide Inorganic materials 0.000 description 1
- ZZUFCTLCJUWOSV-UHFFFAOYSA-N furosemide Chemical compound C1=C(Cl)C(S(=O)(=O)N)=CC(C(O)=O)=C1NCC1=CC=CO1 ZZUFCTLCJUWOSV-UHFFFAOYSA-N 0.000 description 1
- 229910052757 nitrogen Inorganic materials 0.000 description 1
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
Landscapes
- Fuel Cell (AREA)
Description
【０００１】[0001]
【産業上の利用分野】本発明は、溶融炭酸塩型燃料電池
を用いた燃料電池発電設備に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fuel cell power generation system using a molten carbonate fuel cell.
【０００２】[0002]
【従来の技術】溶融炭酸塩型燃料電池は、高効率、かつ
環境への影響が少ないなど、従来の発電装置にはない特
徴を有しており、水力・火力・原子力に続く発電システ
ムとして注目を集め、現在世界各国で鋭意研究開発が行
われている。特に天然ガスを燃料とする溶融炭酸塩型燃
料電池を用いた発電設備では、図２に示すように天然ガ
ス等の燃料ガス１を水素を含むアノードガス２に改質す
る改質器１０と、アノードガス２と酸素を含むカソード
ガス３とから発電する燃料電池１１とを備えており、改
質器で作られたアノードガス２は燃料電池に供給され、
燃料電池内でその大部分（例えば８０％）を消費した
後、アノード排ガス４として改質器の燃焼室Ｃｏに供給
される。改質器１０ではアノード排ガス中の可燃成分
（水素、一酸化炭素、メタン等）が燃焼室Ｃｏで燃焼
し、高温の燃焼ガスにより改質室Ｒｅを加熱し改質室の
燃料を改質する。改質器１０を出た燃焼排ガス５は空気
予熱器１３ｂ、凝縮器１６ａ、気水分離器１５を通って
水分を除去され、低温ブロア１７ｃで加圧され、タービ
ン圧縮機１２から供給される加圧空気６と合流してカソ
ードガス３となり、燃料電池のカソード側に必要な二酸
化炭素を供給する。燃料電池内でその一部が反応したカ
ソードガス（カソード排ガス７）は、高温ブロア１７ｂ
により燃料電池の上流側に一部が循環され、残りはター
ビン圧縮機１２で圧力を回収されて系外に排出される。
なお、図２において、１３ａは燃料予熱器、１４は脱硫
器、１６ｂは加熱器、１７ｄは空気ブロア、２１は熱風
発生炉である。2. Description of the Related Art Molten carbonate fuel cells have features that are not found in conventional power generation devices, such as high efficiency and little impact on the environment, and have attracted attention as power generation systems following hydro, thermal and nuclear power. Are being researched and developed in various countries around the world. In particular, in a power generation facility using a molten carbonate fuel cell using natural gas as a fuel, as shown in FIG. 2, a reformer 10 for reforming a fuel gas 1 such as natural gas into an anode gas 2 containing hydrogen, A fuel cell 11 for generating electricity from the anode gas 2 and the cathode gas 3 containing oxygen; the anode gas 2 produced by the reformer is supplied to the fuel cell;
After most (for example, 80%) of the fuel cell is consumed in the fuel cell, it is supplied as anode exhaust gas 4 to the combustion chamber Co of the reformer. In the reformer 10, combustible components (hydrogen, carbon monoxide, methane, etc.) in the anode exhaust gas are burned in the combustion chamber Co, and the reforming chamber Re is heated by the high-temperature combustion gas to reform the fuel in the reforming chamber. . The flue gas 5 that has exited the reformer 10 passes through an air preheater 13b, a condenser 16a, and a steam separator 15, from which moisture is removed, is pressurized by a low-temperature blower 17c, and is supplied from the turbine compressor 12. It merges with the compressed air 6 to become the cathode gas 3 and supplies necessary carbon dioxide to the cathode side of the fuel cell. The cathode gas (cathode exhaust gas 7) partially reacted in the fuel cell is supplied to a high-temperature blower 17b.
As a result, a part is circulated upstream of the fuel cell, and the remaining pressure is recovered by the turbine compressor 12 and discharged out of the system.
In FIG. 2, 13a is a fuel preheater, 14 is a desulfurizer, 16b is a heater, 17d is an air blower, and 21 is a hot air generator.
【０００３】[0003]
【発明が解決しようとする課題】かかる従来の燃料電池
発電設備では、低温ブロア１７ｃが凝縮後の燃焼排ガス
５を加圧循環させるために設けられ、空気ブロア１７ｄ
が空気を加圧するために別個に設けられている。しか
し、空気ブロア１７ｄは起動時のみに運転され、タービ
ン圧縮機１２が自立運転状態に入ると停止するため、発
電設備の使用期間のほとんどにわたって使用されず、発
電設備全体のコスト低減、コンパクト化、シンプル化に
反する要因となっていた。In such a conventional fuel cell power plant, a low-temperature blower 17c is provided for pressurizing and circulating the condensed combustion exhaust gas 5, and an air blower 17d.
Are provided separately for pressurizing the air. However, the air blower 17d is operated only at the time of start-up, and stops when the turbine compressor 12 enters the self-sustained operation state. It was a factor against simplification.
【０００４】本発明はかかる問題点を解決するために創
案されたものである。すなわち、本発明の目的は、低温
ブロア１７ｃと空気ブロア１７ｄを単一ブロアで兼用
し、発電設備全体のコスト低減、コンパクト化、シンプ
ル化が可能となる燃料電池発電設備を提供することにあ
る。The present invention has been made to solve such a problem. That is, an object of the present invention is to provide a fuel cell power generation facility which can use the low-temperature blower 17c and the air blower 17d as a single blower and can reduce the cost, size, and simplification of the entire power generation facility.
【０００５】[0005]
【課題を解決するための手段】本発明によれば、天然ガ
ス等の燃料ガス（１）を水素を含むアノードガス（２）
に改質する改質器（１０）と、アノードガス（２）と酸
素を含むカソードガス（３）とから発電する燃料電池
（１１）と、を備え、前記改質器（１０）で作られたア
ノードガス（２）は、前記燃料電池（１１）に供給さ
れ、該燃料電池（１１）内で消費した後、アノード排ガ
ス（４）として改質器（１０）の燃焼室（Ｃｏ）に供給
され、前記改質器（１０）ではアノード排ガス（４）中
の可燃成分を燃焼室（Ｃｏ）で燃焼し、高温の燃焼ガス
により改質室（Ｒｅ）を加熱し、改質室（Ｒｅ）の燃料
を改質し、前記改質器（１０）を出た燃焼排ガス（５）
は、タービン圧縮機（１２）から供給される加圧空気
（６）と合流してカソードガス（３）となり、前記燃料
電池（１１）のカソード側に必要な二酸化炭素を供給
し、前記燃料電池（１１）内でその一部が反応したカソ
ード排ガス７は、該燃料電池（１１）の上流側に一部が
循環され、残りはタービン圧縮機（１２）で圧力を回収
されて系外に排出されるように構成した燃料電池発電設
備であって、前記タービン圧縮機（１２）と並列に設置
された循環ブロア（２２）と、前記改質器（１０）から
出て、空気予熱器（１３ｂ）、凝縮器（１６ａ）、気水
分離器（１５）を通って水分を除去した燃焼排ガス
（５）を、前記循環ブロア（２２）の吸気側に導く循環
ライン（２３）と、該循環ライン（２３）に設けられた
循環ガス流量制御弁（２４）と、を備えた、ことを特徴
とする燃料電池発電設備が提供される。According to the present invention, a natural gas is provided.
Anode gas (2) containing hydrogen as fuel gas (1)
Reformer (10), anode gas (2) and acid
Fuel cell that generates electricity from a cathode gas containing nitrogen (3)
(11), and an apparatus made by the reformer (10).
The node gas (2) is supplied to the fuel cell (11).
After being consumed in the fuel cell (11), the anode exhaust gas
(4) to the combustion chamber (Co) of the reformer (10)
In the reformer (10), the anode exhaust gas (4)
Combustible components are combusted in the combustion chamber (Co) to produce high-temperature combustion gas.
Heats the reforming chamber (Re) with the fuel in the reforming chamber (Re).
And the combustion exhaust gas (5) exiting the reformer (10)
Is pressurized air supplied from the turbine compressor (12).
(6) to form a cathode gas (3),
Supply necessary carbon dioxide to the cathode side of battery (11)
And a partially reacted cathode in the fuel cell (11).
The fuel cell exhaust gas 7 is partially upstream of the fuel cell (11).
Circulated, rest recovers pressure with turbine compressor (12)
Fuel cell power generation system
A Bei, said turbine compressor (12) and the installed circulating blower in parallel (22), from said reformer (10)
Get out, air preheater (13b), condenser (16a), steam
Flue gas from which water has been removed through a separator (15)
(5), wherein a circulation line leading to the intake side of the circulating blower (22) (23), the circulating gas flow control valve provided in the circulation line (23) and (24), with a, characterized in that And a fuel cell power generation facility.
【０００６】本発明の好ましい実施例によれば、前記循
環ガス流量制御弁（２４）を閉じて発電を停止し、起動
時に前記循環ブロア（２２）により熱風発生炉（２１）
に空気を供給し、次いで循環ガス流量制御弁（２４）を
開いてカソード側に空気を供給する制御装置（５４）を
更に備えている。According to a preferred embodiment of the [0006] present invention, the circulating gas flow control valve to generate electricity closed (24) is stopped, hot air generator furnace by the circulating blower (22) at startup (21)
And a controller (54) for supplying air to the cathode and then opening the circulating gas flow control valve (24) to supply air to the cathode side.
【０００７】[0007]
【作用】上記本発明の構成によれば、従来の空気ブロア
１７ｄの代わりにタービン圧縮機（１２）と並列に循環
ブロア（２２）が設置され、かつ改質器（１０）から出
て、空気予熱器（１３ｂ）、凝縮器（１６ａ）、気水分
離器（１５）を通って水分を除去した燃焼排ガス（５）
を循環ブロア（２２）の吸気側に導く循環ライン（２
３）に循環ガス流量制御弁（２４）が設置されているの
で、従来の低温ブロアと空気ブロアを単一の循環ブロア
（２２）で兼用することができ、発電設備全体のコスト
低減、コンパクト化、シンプル化が可能となる。According to the structure of the present invention, a circulating blower (22) is installed in parallel with the turbine compressor (12) in place of the conventional air blower 17d, and the circulating blower (22) exits from the reformer (10).
And air preheater (13b), condenser (16a), moisture
Flue gas (5) from which water has been removed through a separator (15 )
Line (2 ) for guiding the air to the intake side of the circulation blower (22)
Since the circulation gas flow control valve (24) is installed in 3) , the conventional low-temperature blower and air blower can be combined into a single circulation blower.
(22) can be shared, and the cost reduction, compactness, and simplification of the entire power generation equipment can be achieved.
【０００８】[0008]
【実施例】以下、本発明の好ましい実施例を図面を参照
して説明する。なお、各図において共通する部分には同
一の符号を付して使用する。図１は、本発明による燃料
電池発電設備の全体構成図である。この図において、本
発明の燃料電池発電設備は、空気６を加圧するタービン
圧縮機１２と並列に設置された循環ブロア２２と、水分
を除去した燃焼排ガス５を循環ブロア２２の吸気側に導
く循環ライン２３と、循環ライン２３に設けられた循環
ガス流量制御弁２４とを備えている。Preferred embodiments of the present invention will be described below with reference to the drawings. In the drawings, common parts are denoted by the same reference numerals. FIG. 1 is an overall configuration diagram of a fuel cell power generation facility according to the present invention. In this figure, the fuel cell power generation equipment of the present invention has a circulation blower 22 installed in parallel with a turbine compressor 12 for pressurizing air 6 and a circulation guide for introducing combustion exhaust gas 5 from which moisture has been removed to the intake side of circulation blower 22. A line 23 and a circulation gas flow control valve 24 provided in the circulation line 23 are provided.
【０００９】すなわち、循環ブロア２２は、図２の従来
の設備の空気ブロア１７ｄの位置に配置される。この循
環ブロア２２は、従来の低温ブロア１７ｃと空気ブロア
１７ｄの機能を併せもっており、同一ガス（燃焼排ガス
５と空気６）を同一圧力及び同一流量で流せるようにな
っている。また、従来の低温ブロア用流量制御弁１９ｂ
の代わりに、新たに設けられた循環ライン２３に循環ガ
ス流量制御弁２４が設けられている。流量制御弁２４と
流量制御弁１９ｂとは、同一ガス（燃焼排ガス５）を流
す実質的に同一の弁である。その他の構成機器は、後述
する制御装置を除き、図２と同様である。That is, the circulation blower 22 is disposed at the position of the air blower 17d of the conventional equipment shown in FIG. The circulation blower 22 has the functions of the conventional low-temperature blower 17c and the air blower 17d, so that the same gas (combustion exhaust gas 5 and air 6) can flow at the same pressure and the same flow rate. In addition, a conventional low-temperature blower flow control valve 19b
Instead, a circulation gas flow control valve 24 is provided in a newly provided circulation line 23. The flow control valve 24 and the flow control valve 19b are substantially the same valve that flows the same gas (combustion exhaust gas 5). Other components are the same as those in FIG. 2 except for a control device described later.
【００１０】上述した構成により、図１の燃料電池発電
設備では、図２の従来の低温ブロア１７ｃと空気ブロア
１７ｄを単一の循環ブロア２２で兼用するため、発電設
備全体のコスト低減、コンパクト化、シンプル化が可能
となる。With the above-described configuration, in the fuel cell power generation equipment shown in FIG. 1, the single low-temperature blower 17c and the air blower 17d shown in FIG. , And can be simplified.
【００１１】図１において、本発明の燃料電池発電設備
は、更に、循環ガス流量制御弁２４を閉じて発電を停止
し、起動時に循環ブロア２２により熱風発生炉２１に空
気６を供給し、次いで循環ガス流量制御弁２４を開いて
カソード側に空気６を供給する制御装置２５を備えてい
る。この制御装置２５は、全体設備全体の出力指令を受
け、循環ガス流量制御弁２４以外の流量制御弁１９ａ、
１９ｃ、１９ｄ及び遮断弁１８ａ、１８ｂ、１８ｃをも
制御するようになっている。この制御装置２５により、
図１の発電設備は、以下の順序で起動される。In FIG. 1, the fuel cell power generation equipment of the present invention further closes a circulating gas flow control valve 24 to stop power generation, supplies air 6 to a hot air generating furnace 21 by a circulating blower 22 at startup, and then A control device 25 that opens the circulating gas flow control valve 24 and supplies the air 6 to the cathode side is provided. The control device 25 receives an output command of the entire facility, and receives flow control valves 19a other than the circulating gas flow control valve 24,
19c, 19d and the shutoff valves 18a, 18b, 18c are also controlled. With this control device 25,
The power generation equipment of FIG. 1 is started in the following order.
【００１２】１．発電停止中は、遮断弁１８ａ、１８
ｂ、１８ｃ及び循環ガス流量制御弁２４を閉じ、流量制
御弁１９ａを開いて、不活性ガス９（例えば窒素ガス）
を遮断弁１８ａの下流側と高温ブロア１７ｂの上流側に
供給する。遮断弁１８ａの下流側に入った不活性ガス９
は、改質器１０の改質室Ｒｅ、燃料電池１１のアノード
Ａ、改質器１０の燃焼室Ｃｏ、凝縮器１６ａ、気水分離
器１５を通って流量制御弁１９ａから放出され、アノー
ド側のラインを不活性に保持している。同様に、高温ブ
ロア１７ｂの上流側に入った不活性ガス９は、燃料電池
１１のカソードＣを通って改質器１０の燃焼室Ｃｏとタ
ービン圧縮機１２のタービンＴを通って、最終的には外
部に放出され、カソード側のラインを不活性に保持して
いる。1. While the power generation is stopped, the shutoff valves 18a, 18
b, 18c and the circulating gas flow control valve 24 are closed, and the flow control valve 19a is opened to open the inert gas 9 (for example, nitrogen gas).
Is supplied downstream of the shut-off valve 18a and upstream of the high-temperature blower 17b. Inert gas 9 entering the downstream side of the shut-off valve 18a
Is discharged from the flow control valve 19a through the reforming chamber Re of the reformer 10, the anode A of the fuel cell 11, the combustion chamber Co of the reformer 10, the condenser 16a, the steam separator 15, and the anode side. Line is kept inactive. Similarly, the inert gas 9 entering the upstream side of the high-temperature blower 17b passes through the cathode C of the fuel cell 11, passes through the combustion chamber Co of the reformer 10, and the turbine T of the turbine compressor 12, and finally passes through. Are discharged to the outside and hold the cathode side line inactive.
【００１３】２．起動時には、先ず、循環ブロア２２を
運転して空気６を熱風発生炉２１に供給し、熱風発生炉
２１で発生した高温ガスを加熱器１６ｂに送り、加熱器
１６ｂでカソード側を循環している不活性ガス９を加熱
し、燃料電池１１を加熱する。 ３．燃料電池１１が所定の温度（例えば５８０℃以上）
に達したら、不活性ガス９の供給を停止し、流量制御弁
１９ａを閉じ、遮断弁１８ｂ、１８ｃ、流量制御弁１９
ｄ、２４を開いて、カソード側に空気６を供給すると同
時に改質器１０の燃焼室Ｃｏからの排気を循環ブロア２
２で吸引して、燃焼室Ｃｏでの燃焼を開始する。2. At the time of startup, first, the circulation blower 22 is operated to supply the air 6 to the hot-air generating furnace 21, and the high-temperature gas generated in the hot-air generating furnace 21 is sent to the heater 16 b, and the heater 16 b circulates on the cathode side. The inert gas 9 is heated, and the fuel cell 11 is heated. 3. Fuel cell 11 is at a predetermined temperature (for example, 580 ° C. or higher)
Is reached, the supply of the inert gas 9 is stopped, the flow control valve 19a is closed, and the shutoff valves 18b and 18c, the flow control valve 19
d, 24 are opened to supply air 6 to the cathode side, and at the same time, exhaust air from the combustion chamber Co of the reformer 10 to the circulation blower 2.
2 to start combustion in the combustion chamber Co.
【００１４】４．次いで、改質器１０が所定の温度（例
えば７７０℃以上）に達したら、遮断弁１８ａを開き、
発電を開始する。また、流量制御弁１９ｃ、２４は、発
電設備の出力指令に応じてその開度を自動制御する。4. Next, when the reformer 10 reaches a predetermined temperature (for example, 770 ° C. or higher), the shut-off valve 18a is opened,
Start power generation. In addition, the flow control valves 19c and 24 automatically control their opening according to an output command of the power generation equipment.
【００１５】上述した起動順序により、本発明の燃料電
池発電設備は、従来の低温ブロア１７ｃと空気ブロア１
７ｄを単一の循環ブロア２２で兼用するにも係わらず、
従来と同様の安全で円滑な起動を行うことができる。な
お、本発明は上述した実施例に限定されず、本発明の要
旨を逸脱しない範囲で種々変更できることは勿論であ
る。According to the above-described start-up sequence, the fuel cell power generation equipment of the present invention is constructed by the conventional low-temperature blower 17c and air blower 1
Although 7d is shared by a single circulation blower 22,
The same safe and smooth startup as in the past can be performed. It should be noted that the present invention is not limited to the above-described embodiment, and it is needless to say that various changes can be made without departing from the spirit of the present invention.
【００１６】[0016]
【発明の効果】上述したように、本発明の燃料電池発電
設備は、低温ブロアと空気ブロアを単一ブロアで兼用す
ることができ、発電設備全体のコスト低減、コンパクト
化、シンプル化が一層可能となる、等の優れ効果を有す
る。As described above, in the fuel cell power generation equipment of the present invention, the low-temperature blower and the air blower can be shared by a single blower, and the cost, size, and simplification of the entire power generation equipment can be further reduced. And other excellent effects.
【図１】本発明による燃料電池発電設備の全体構成図で
ある。FIG. 1 is an overall configuration diagram of a fuel cell power generation facility according to the present invention.
【図２】従来の燃料電池発電設備の全体構成図である。FIG. 2 is an overall configuration diagram of a conventional fuel cell power generation facility.
１ 燃料ガス ２ アノードガス ３ カソードガス ４ アノード排ガス ５ 燃焼排ガス ６ 空気 ７ カソード排ガス ８ 蒸気 ９ 不活性ガス（窒素ガス） １０ 改質器 １１ 燃料電池 １２ タービン圧縮機 １３ａ 燃料予熱器 １３ｂ 空気予熱器 １４ 脱硫器 １５ 気水分離器 １６ａ 凝縮器 １６ｂ 加熱器 １７ａ 燃料ブロア １７ｂ 高温ブロア １７ｃ 低温ブロア １７ｄ 空気ブロア １８ａ、１８ｂ、１８ｃ 遮断弁 １９ａ、１９ｂ、１９ｃ、１９ｄ 流量制御弁 ２０ａ、２０ｂ 逆止弁 ２１ 熱風発生炉 ２２ 循環ブロア ２３ 循環ライン ２４ 循環ガス流量制御弁 DESCRIPTION OF SYMBOLS 1 Fuel gas 2 Anode gas 3 Cathode gas 4 Anode exhaust gas 5 Combustion exhaust gas 6 Air 7 Cathode exhaust gas 8 Steam 9 Inert gas (nitrogen gas) 10 Reformer 11 Fuel cell 12 Turbine compressor 13a Fuel preheater 13b Air preheater 14 Desulfurizer 15 Steam separator 16a Condenser 16b Heater 17a Fuel blower 17b High temperature blower 17c Low temperature blower 17d Air blower 18a, 18b, 18c Shutoff valve 19a, 19b, 19c, 19d Flow control valve 20a, 20b Check valve 21 Hot air Generator 22 Circulating blower 23 Circulating line 24 Circulating gas flow control valve
───────────────────────────────────────────────────── フロントページの続き (58)調査した分野(Int.Cl.7，ＤＢ名) H01M 8/02 H01M 8/04 ──────────────────────────────────────────────────続 き Continued on front page (58) Field surveyed (Int.Cl. 7 , DB name) H01M 8/02 H01M 8/04
Claims (2)
むアノードガス（２）に改質する改質器（１０）と、ア
ノードガス（２）と酸素を含むカソードガス（３）とか
ら発電する燃料電池（１１）と、を備え、 前記改質器（１０）で作られたアノードガス（２）は、
前記燃料電池（１１）に供給され、該燃料電池（１１）
内で消費した後、アノード排ガス（４）として改質器
（１０）の燃焼室（Ｃｏ）に供給され、 前記改質器（１０）ではアノード排ガス（４）中の可燃
成分を燃焼室（Ｃｏ）で燃焼し、高温の燃焼ガスにより
改質室（Ｒｅ）を加熱し、改質室（Ｒｅ）の燃料を改質
し、 前記改質器（１０）を出た燃焼排ガス（５）は、タービ
ン圧縮機（１２）から供給される加圧空気（６）と合流
してカソードガス（３）となり、前記燃料電池（１１）
のカソード側に必要な二酸化炭素を供給し、 前記燃料電池（１１）内でその一部が反応したカソード
排ガス７は、該燃料電池（１１）の上流側に一部が循環
され、残りはタービン圧縮機（１２）で圧力を回収され
て系外に排出されるように構成した燃料電池発電設備で
あって、 前記 タービン圧縮機（１２）と並列に設置された循環ブ
ロア（２２）と、前記改質器（１０）から出て、空気予熱器（１３ｂ）、
凝縮器（１６ａ）、気水分離器（１５）を通って 水分を
除去した燃焼排ガス（５）を、前記循環ブロア（２２）
の吸気側に導く循環ライン（２３）と、 該循環ライン（２３）に設けられた循環ガス流量制御弁
（２４）と、を備えた、ことを特徴とする燃料電池発電
設備。1. A fuel gas (1) such as natural gas containing hydrogen.
A reformer (10) for reforming into an anode gas (2);
Node gas (2) and cathode gas (3) containing oxygen
A fuel cell (11) for generating electricity from the fuel cell, wherein the anode gas (2) produced by the reformer (10) is:
The fuel cell (11) is supplied to the fuel cell (11).
After consumption in the reformer as anode exhaust gas (4)
The fuel is supplied to the combustion chamber (Co) of (10), and the combustible gas in the anode exhaust gas (4) is supplied to the reformer (10).
The components are burned in the combustion chamber (Co), and the hot combustion gases
Heat the reforming chamber (Re) to reform the fuel in the reforming chamber (Re)
The flue gas (5) exiting the reformer (10) is
With the compressed air (6) supplied from the compressor (12)
Into the cathode gas (3), and the fuel cell (11)
The required carbon dioxide is supplied to the cathode side of the fuel cell, and a part of the cathode has reacted in the fuel cell (11).
Part of the exhaust gas 7 circulates upstream of the fuel cell (11).
And the remaining pressure is recovered by the turbine compressor (12).
Fuel cell power generation equipment configured to be discharged outside the system
There are, said turbine compressor (12) and the installed circulating blower in parallel (22), the exits from the reformer (10), an air preheater (13b),
Condenser (16a), steam separator (15) through the combustion exhaust gas to remove water (5), the circulation blower (22)
A circulating line (23) leading to the intake side of the circulating gas, and a circulating gas flow control valve provided in the circulating line (23)
(24) A fuel cell power generation facility, comprising:
て発電を停止し、起動時に前記循環ブロア（２２）によ
り熱風発生炉（２１）に空気を供給し、次いで循環ガス
流量制御弁（２４）を開いてカソード側に空気を供給す
る制御装置（５４）を更に備えた、ことを特徴とする請
求項１に記載の燃料電池発電設備。2. A stop power generation by closing the circulation gas flow control valve (24), said air is supplied to the hot air generator furnace (21) by a circulation blower (22) during startup, and then the circulation gas flow control valve ( further comprising a control device (54) for supplying air to the cathode side opening 24), a fuel cell power plant according to claim 1, characterized in that.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22278694A JP3331576B2 (en) | 1994-09-19 | 1994-09-19 | Fuel cell power generation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP22278694A JP3331576B2 (en) | 1994-09-19 | 1994-09-19 | Fuel cell power generation equipment |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH0888016A JPH0888016A (en) | 1996-04-02 |
| JP3331576B2 true JP3331576B2 (en) | 2002-10-07 |
Family
ID=16787880
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP22278694A Expired - Fee Related JP3331576B2 (en) | 1994-09-19 | 1994-09-19 | Fuel cell power generation equipment |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3331576B2 (en) |
Families Citing this family (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3580455B2 (en) * | 1996-03-25 | 2004-10-20 | 石川島播磨重工業株式会社 | Molten carbonate fuel cell and power generator using the same |
| KR101279409B1 (en) | 2010-02-01 | 2013-06-27 | 주식회사 엘지화학 | Cable-Type Secondary Battery |
| KR101283488B1 (en) | 2010-02-01 | 2013-07-12 | 주식회사 엘지화학 | Cable-Type Secondary Battery |
| WO2011093661A2 (en) | 2010-02-01 | 2011-08-04 | 주식회사 엘지화학 | Cable type rechargeable battery |
| WO2014069408A1 (en) * | 2012-10-31 | 2014-05-08 | 三菱重工業株式会社 | Power generation system, and methods for starting and operating fuel cell in power generation system |
| JP6071428B2 (en) * | 2012-10-31 | 2017-02-01 | 三菱日立パワーシステムズ株式会社 | Power generation system and method for starting fuel cell in power generation system |
-
1994
- 1994-09-19 JP JP22278694A patent/JP3331576B2/en not_active Expired - Fee Related
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0888016A (en) | 1996-04-02 |
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