JPS58164159A - Abnormal pressure difference preventive device of fuel cell - Google Patents
Abnormal pressure difference preventive device of fuel cellInfo
- Publication number
- JPS58164159A JPS58164159A JP57047984A JP4798482A JPS58164159A JP S58164159 A JPS58164159 A JP S58164159A JP 57047984 A JP57047984 A JP 57047984A JP 4798482 A JP4798482 A JP 4798482A JP S58164159 A JPS58164159 A JP S58164159A
- Authority
- JP
- Japan
- Prior art keywords
- fuel gas
- tank
- pressure
- gas chamber
- water
- 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
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04082—Arrangements for control of reactant parameters, e.g. pressure or concentration
- H01M8/04089—Arrangements for control of reactant parameters, e.g. pressure or concentration of gaseous reactants
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01M—PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSION OF CHEMICAL ENERGY INTO ELECTRICAL ENERGY
- H01M8/00—Fuel cells; Manufacture thereof
- H01M8/04—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids
- H01M8/04223—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells
- H01M8/04228—Auxiliary arrangements, e.g. for control of pressure or for circulation of fluids during start-up or shut-down; Depolarisation or activation, e.g. purging; Means for short-circuiting defective fuel cells during shut-down
-
- 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
Abstract
Description
【発明の詳細な説明】
本発明は、燃料ガス室と空気室との関に燃料電極、電解
質！ｉ！（循環形の電解液室およ゛び電解質固定形のマ
） ＩＪフックスの他を含む）および空気電極を挾持し
てなる燃料電池の異常差圧防止装置に関する。[Detailed Description of the Invention] The present invention provides a fuel electrode and an electrolyte between the fuel gas chamber and the air chamber! i! This invention relates to an abnormal pressure differential prevention device for a fuel cell, which includes a circulating electrolyte chamber and a fixed electrolyte chamber (including IJ Fuchs and others) and an air electrode.
燃料電池の電極は一般に薄く作られているために、燃料
ガス室と空気室との間に差圧が発生すると、電極の強度
がおび中かされ、破槍もしくはシール不良を惹起するお
それがある。Since fuel cell electrodes are generally made thin, if a pressure difference occurs between the fuel gas chamber and the air chamber, the strength of the electrodes will be weakened and there is a risk of rupture or seal failure. .
このため、従来は燃料ガス室と空気室の圧力を七れそれ
制御して所定以上の差圧が両富関に発生しないようにし
ている。ところが、負荷しゃ断時のように燃料電池での
燃料ガスと空気の消費が瞬時に停止してしまう場合には
、電池の反応原理上、燃料ガス側の容積増加が空気側に
くらぺて大き、くなるうえ、九とえば空冷方式を採用し
ている場合のごとく空気側の系統容積が着しく大きい場
合には、燃料ガス側の系統容積に対する増加比率はさら
に大きくなるので、燃料ガス側の圧力上昇が顕著になり
、電極への影譬が無視できないものとなってしまう。For this reason, conventionally, the pressures in the fuel gas chamber and the air chamber are individually controlled to prevent a pressure difference exceeding a predetermined value from occurring between the two fuel gas chambers. However, when the consumption of fuel gas and air in the fuel cell stops instantaneously, such as when the load is cut off, due to the reaction principle of the cell, the volume increase on the fuel gas side is larger than that on the air side. In addition, if the system volume on the air side is significantly large, such as when an air cooling system is used, the increase ratio to the system volume on the fuel gas side will be even larger, so the pressure on the fuel gas side will increase. The increase becomes significant, and the influence on the electrodes cannot be ignored.
そこで本発明はかかる場合にも対処できるようにして、
負荷しゃ断時であっても燃料電池が危険にさらされない
ようにする装置を提供することを目的とする。Therefore, the present invention can deal with such cases,
It is an object of the present invention to provide a device that prevents a fuel cell from being exposed to danger even during load cutoff.
本発明によれは、この目的は、燃料ガス室の入口側まえ
社員口側に水剤装置と所定容積のタンクとを併設するこ
とによ如達成される・
１１１１ｆｉは本発明の実施例を示すもので、ｌは燃料
電池で６３１．燃料ガス室２１燃料電極８１電解質ｍ４
、空気電極５および空気室６からなっている。燃料ガス
室２には燃料ガス供給弁１９を介しで燃料ガスが供給さ
れ、出口側には圧力調整弁７が設けられて入口側の圧力
検出１８Ｂの出力に基づいて燃料ガス室の圧力が所定範
−になるよう制御される。空気室６には空気供給弁２０
を介して空気が供給され、その出口側にも同様に圧力ａ
ｉｍ’ｓが般１られて入口−の圧力検出１６１Ｇの出力
に基づいて空気室の圧力が所定範１１になるよう制御さ
れる。According to the present invention, this object is achieved by providing a liquid medicine device and a tank with a predetermined volume on the entrance side of the fuel gas chamber and on the employee entrance side. 1111fi shows an embodiment of the present invention. 1 is a fuel cell, and 631. Fuel gas chamber 21 fuel electrode 81 electrolyte m4
, an air electrode 5 and an air chamber 6. Fuel gas is supplied to the fuel gas chamber 2 via a fuel gas supply valve 19, and a pressure regulating valve 7 is provided on the outlet side to adjust the pressure in the fuel gas chamber to a predetermined value based on the output of the pressure detector 18B on the inlet side. It is controlled to be within the range. An air supply valve 20 is provided in the air chamber 6.
Air is supplied through the outlet, and the pressure a is also applied to the outlet side.
im's is generally 1, and the pressure in the air chamber is controlled to be within a predetermined range 11 based on the output of the inlet pressure sensor 161G.
しかして両者の制御によ〕定常運転状態では両室関に差
圧かはとんど生しないようにされる。図に示した絶対圧
制御の他に１両室間の差圧を検出して精密に差圧制御を
行う方法もある。しかしながらどのような差圧制御手段
を講じても、負荀しゃ断時のごとく燃料ガス側に急激な
圧力上昇が生じる場合には１不可避的な制御遅れの丸め
に１電働に過差圧を生じることを避けることができない
。By controlling both, a differential pressure between the two chambers is hardly generated in a steady state of operation. In addition to the absolute pressure control shown in the figure, there is also a method of detecting the differential pressure between two chambers and performing precise differential pressure control. However, no matter what differential pressure control means are used, if a sudden pressure rise occurs on the fuel gas side, such as during negative power cutoff, excessive differential pressure will occur due to the unavoidable control delay. I can't avoid it.
このために燃料ガス皇２０入口に１水刺装置１１と所定
容積のタンク１２とが併設される。水側Ｍ＊１１は水の
供給路１８と排水路１４と排気路１５とに接続され内ｌ
１１１に水が収容されるタンク１６から構成され、タン
ク１６の水の内ｓＫ燃料ガス室２０入口に連なる管１７
が、Ｈなる深さまで挿入される。この深さＨに相蟲する
水圧は燃料ガス系内圧力よりわずかに大きく設定してお
く・これによ多燃料ガス室２内の上昇圧力を制限するこ
とができる。水対装置１１と併設されるタンク１２にも
燃料ガス室２０入口に連なる管１８が接続される・この
タンクの容量は、負荷しゃ断時を含めて予想される最大
の圧力上昇時に水ＩＩ＃懐置装慣性にもとづいて過渡的
に生ずる圧力上昇を緩和する容量値に選ばれる◎タンク
１２のみを設置する場合Ｋｍ系絖容積に対して同等かそ
れ以上の容積を持つタンクが必要とな）実用的ではない
し、水ＩＩ４懐置ｉｌｌ独では圧力上昇速度によっては
慣性により設定値以上の圧力上昇が生じることＫなるの
で、両者を組合せるのがそれぞれの欠点を補うことにな
）効果４確実となる０ １なお、実施例では水
剤装置１１とタンク１２とを燃料ガス皇の入口側に設ゆ
えが、出口側に設けても−橡な効果が得られることは云
うまでもない。For this purpose, a water pricking device 11 and a tank 12 with a predetermined volume are installed at the inlet of the fuel gas tank 20. The water side M*11 is connected to the water supply channel 18, the drainage channel 14, and the exhaust channel 15, and the inner
It consists of a tank 16 in which water is stored in the tank 111, and a pipe 17 connected to the inlet of the sK fuel gas chamber 20 in the water of the tank 16.
is inserted to a depth of H. The water pressure corresponding to this depth H is set to be slightly larger than the pressure inside the fuel gas system. This makes it possible to limit the rising pressure inside the multi-fuel gas chamber 2. A pipe 18 connected to the inlet of the fuel gas chamber 20 is also connected to a tank 12 attached to the water pairing device 11.The capacity of this tank is set to The capacity value is selected to alleviate the pressure rise that occurs transiently based on the inertia of the equipment. ◎If only tank 12 is installed, a tank with a volume equal to or larger than the Km system is required)Practical However, depending on the rate of pressure rise, inertia may cause a pressure rise that exceeds the set value, so combining the two will compensate for the shortcomings of each.) Effect 4: Reliable In the embodiment, the liquid medication device 11 and the tank 12 are provided on the inlet side of the fuel gas tank, but it goes without saying that even if they are provided on the outlet side, even better effects can be obtained.
また、燃料電池の系内圧力が電極で封じられる程度の低
圧である場合のみならず、よシ高圧の場合であっても封
入液体の種類を−えることによ抄圧力範囲を変えた如、
あるいは大気圧部分を別に制御された圧力に保持した〕
することによって対応可能である。In addition, not only when the pressure inside the fuel cell system is low enough to be sealed by electrodes, but also when the pressure is higher than that, by changing the type of sealed liquid, the pressure range can be changed.
Or the atmospheric pressure part was maintained at a separately controlled pressure.]
This can be done by doing so.
第１図は本発明の実施例の流体−回路図である。
１・・・燃料電池、２・・・燃料ガス富、１１・・・水
封装置、１２・・・タンク。
′ｖ′１ ｍFIG. 1 is a fluid circuit diagram of an embodiment of the present invention. 1... Fuel cell, 2... Fuel gas richness, 11... Water sealing device, 12... Tank. ′v′1 m
Claims (1)
空気電極を挾持してなる燃料電池でらって、燃料ガス室
と空気室の圧力制御手段が設けら九ことを特徴とする燃
料電池の異常差圧防止装置。A fuel cell comprising a fuel electrode, an electrolyte chamber, and an air electrode sandwiched between a fuel gas chamber and an air chamber, and comprising pressure control means for the fuel gas chamber and the air chamber. Abnormal differential pressure prevention device for batteries.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57047984A JPS58164159A (en) | 1982-03-25 | 1982-03-25 | Abnormal pressure difference preventive device of fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP57047984A JPS58164159A (en) | 1982-03-25 | 1982-03-25 | Abnormal pressure difference preventive device of fuel cell |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS58164159A true JPS58164159A (en) | 1983-09-29 |
| JPH028424B2 JPH028424B2 (en) | 1990-02-23 |
Family
ID=12790574
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP57047984A Granted JPS58164159A (en) | 1982-03-25 | 1982-03-25 | Abnormal pressure difference preventive device of fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS58164159A (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60198064A (en) * | 1984-03-19 | 1985-10-07 | Toshiba Corp | Fuel cell system |
| JPS62165870A (en) * | 1986-01-17 | 1987-07-22 | Hitachi Ltd | Power generation system by fuel cell |
| WO2018236450A1 (en) * | 2017-06-22 | 2018-12-27 | Fuelcell Energy, Inc. | System for rebalancing a pressure differential in an anode exhaust system of a fuel cell with a relational water seal |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50115319A (en) * | 1974-02-23 | 1975-09-09 |
-
1982
- 1982-03-25 JP JP57047984A patent/JPS58164159A/en active Granted
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS50115319A (en) * | 1974-02-23 | 1975-09-09 |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS60198064A (en) * | 1984-03-19 | 1985-10-07 | Toshiba Corp | Fuel cell system |
| JPS62165870A (en) * | 1986-01-17 | 1987-07-22 | Hitachi Ltd | Power generation system by fuel cell |
| WO2018236450A1 (en) * | 2017-06-22 | 2018-12-27 | Fuelcell Energy, Inc. | System for rebalancing a pressure differential in an anode exhaust system of a fuel cell with a relational water seal |
| US10483562B2 (en) | 2017-06-22 | 2019-11-19 | Fuelcell Energy, Inc. | System for rebalancing a pressure differential in an anode exhaust system of a fuel cell with a relational water seal |
| CN110785883A (en) * | 2017-06-22 | 2020-02-11 | 燃料电池能有限公司 | System for rebalancing pressure differentials in anode exhaust systems of fuel cells with associated water seals |
| CN110785883B (en) * | 2017-06-22 | 2023-03-21 | 燃料电池能有限公司 | System for rebalancing pressure differentials in anode exhaust systems of fuel cells with associated water seals |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH028424B2 (en) | 1990-02-23 |
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