JPH0737600A - Fuel cell power generator unit and testing method thereof - Google Patents

Fuel cell power generator unit and testing method thereof

Info

Publication number
JPH0737600A
JPH0737600A JP5184041A JP18404193A JPH0737600A JP H0737600 A JPH0737600 A JP H0737600A JP 5184041 A JP5184041 A JP 5184041A JP 18404193 A JP18404193 A JP 18404193A JP H0737600 A JPH0737600 A JP H0737600A
Authority
JP
Japan
Prior art keywords
valve
safety valve
fuel cell
steam
power generator
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.)
Pending
Application number
JP5184041A
Other languages
Japanese (ja)
Inventor
Eiichi Iino
栄一 飯野
Toshio Kameyama
壽雄 亀山
Maki Ishizawa
真樹 石沢
Shigemi Iida
茂実 飯田
Shuichi Kitada
秀一 北田
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.)
Nippon Telegraph and Telephone Corp
Original Assignee
Nippon Telegraph and Telephone Corp
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 Nippon Telegraph and Telephone Corp filed Critical Nippon Telegraph and Telephone Corp
Priority to JP5184041A priority Critical patent/JPH0737600A/en
Publication of JPH0737600A publication Critical patent/JPH0737600A/en
Pending legal-status Critical Current

Links

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)

Abstract

PURPOSE:To provide a fuel cell power generator unit and its testing method wherein testing a safety valve or air-tightness testing of a steam separator can be easily executed without removing the safety valve. CONSTITUTION:In a fuel cell power generator unit having a steam separator 11 provided with a safety valve 12 successively in line through a steam separator safety valve main valve 13 and a nitrogen gas cylinder 1 provided with a pressure regulator 2, a pipe of nitrogen gas leading to the fuel cell powder generator unit from the pressure regulator 2 is connected partly through a testing valve 18 to a connecting point of the steam generator safety valve main valve 13 to the safety valve 12 or to the steam separator 11.

Description

【発明の詳細な説明】Detailed Description of the Invention

【０００１】[0001]

【産業上の利用分野】本発明は、燃料電池発電装置に設
けられた安全弁の試験及び気水分離器の気密試験を簡便
に行うための燃料電池発電装置およびその試験方法に関
するものである。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fuel cell power generator for easily performing a test of a safety valve provided in a fuel cell power generator and an airtight test of a steam separator, and a test method therefor.

【０００２】[0002]

【従来の技術】従来の燃料電池発電装置は例えば図３に
示すように窒素ガスボンベ１、圧力調節器２、窒素ガス
用圧力計３、窒素ガス用圧力計元バルブ４、窒素ガス用
安全弁５、窒素ガス用安全弁元バルブ６、流量調節器７
と８、セルスタック燃料極９、改質器触媒層１０、気水
分離器１１、気水分離器用安全弁１２、気水分離器用安
全弁元バルブ１３、気水分離器用圧力計１４、気水分離
器用圧力計元バルブ１５、安全弁試験装置１６、コンプ
レッサ１７から主として構成されている。2. Description of the Related Art A conventional fuel cell power generator is, for example, as shown in FIG. 3, a nitrogen gas cylinder 1, a pressure regulator 2, a nitrogen gas pressure gauge 3, a nitrogen gas pressure gauge main valve 4, a nitrogen gas safety valve 5, Safety valve base valve 6 for nitrogen gas, flow controller 7
And 8, cell stack fuel electrode 9, reformer catalyst layer 10, steam separator 11, steam separator safety valve 12, steam separator safety valve valve 13, steam separator pressure gauge 14, steam separator It is mainly composed of a pressure gauge main valve 15, a safety valve test device 16, and a compressor 17.

【０００３】従来システムでは、窒素ガスボンベ１は圧
力調節器２に接続され、この圧力調節器２の出力は、流
量調節器７を介してセルスタック燃料極９に、流量調節
器８を介して改質器触媒層１０に、窒素ガス用安全弁元
バルブ６を介して窒素ガス用安全弁５に、窒素ガス用圧
力計元バルブ４を介して窒素ガス用圧力計３にそれぞれ
接続されている。また、気水分離器１１は、気水分離器
用安全弁元バルブ１３を介して気水分離器用安全弁１２
に、気水分離器用圧力計元バルブ１５を介して気水分離
器用圧力計１４にそれぞれ接続されている。In the conventional system, the nitrogen gas cylinder 1 is connected to a pressure regulator 2, and the output of the pressure regulator 2 is modified to a cell stack fuel electrode 9 via a flow controller 7 and a flow controller 8 via a flow controller 8. The pouch catalyst layer 10 is connected to the nitrogen gas safety valve 5 via the nitrogen gas safety valve source valve 6 and to the nitrogen gas pressure gauge 3 via the nitrogen gas pressure gauge source valve 4, respectively. In addition, the steam separator 11 is provided with a safety valve 12 for steam separator via a safety valve valve 13 for steam separator.
Further, they are respectively connected to the steam / water separator pressure gauge 14 via a steam / water separator pressure gauge main valve 15.

【０００４】以上のような構成の燃料電池発電装置にお
いて、燃料電池発電装置停止時の燃料ガス置換の目的
と、燃料電池発電装置の停止保管中におけるセルスタッ
ク燃料極９および改質器触媒層１０の空気との接触劣化
を防止する目的のために流量調節器７と流量調節器８で
流量を調節した窒素ガスが使用されていた。なお、劣化
防止のための窒素使用量は、約０．５ ｌ／ｍｉｎと非
常に微量であり、通常はガスボンベで十分である。In the fuel cell power generator having the above-described structure, the purpose of fuel gas replacement when the fuel cell power generator is stopped, and the cell stack fuel electrode 9 and the reformer catalyst layer 10 when the fuel cell power generator is stopped and stored. For the purpose of preventing the contact deterioration with the air, nitrogen gas whose flow rate is adjusted by the flow rate controllers 7 and 8 is used. The amount of nitrogen used for preventing deterioration is about 0.5 l / min, which is a very small amount, and a gas cylinder is usually sufficient.

【０００５】また、気水分離器１１は、動作温度約１９
０℃のセルスタックの冷却水用貯蔵と改質用の水蒸気供
給貯蔵を主な目的として設けられた圧力容器で、使用圧
力約６ｋｇ／ｃｍ2 と燃料電池発電装置のなかで一番高
い圧力にさらされている機器である。このため、気水分
離器用安全弁の試験や気水分離器の気密試験は燃料電池
発電装置を安全に運転するための重要な試験項目であっ
た。The steam separator 11 has an operating temperature of about 19
It is a pressure vessel that has been installed mainly for storage of cooling water of the cell stack at 0 ° C and supply of steam for reforming, and has a working pressure of about 6 kg / cm 2 and the highest pressure among fuel cell power generators. It is an exposed device. Therefore, the test of the safety valve for the water-water separator and the airtight test of the water-water separator were important test items for safe operation of the fuel cell power generator.

【０００６】この燃料電池発電装置の気水分離器用安全
弁１２の試験については、燃料電池発電装置の停止保管
中に気水分離器用安全弁１２を装置から外し、別に用意
された安全弁試験装置１６に接続して試験されていた。Regarding the test of the steam-water separator safety valve 12 of the fuel cell power generator, the steam-water separator safety valve 12 is removed from the device while the fuel cell power generator is stopped and stored, and the safety valve test device 16 is separately prepared. Was being tested.

【０００７】また、気水分離器１１の気密試験は、気水
分離器用安全弁１２を外した位置に別に用意したコンプ
レッサ１７を接続して試験していた。The air-tightness test of the water-water separator 11 was conducted by connecting a separately prepared compressor 17 to the position where the safety valve 12 for the water-water separator is removed.

【０００８】[0008]

【発明が解決しようとする課題】しかしながら、上記従
来技術による燃料電池発電装置の気水分離器用安全弁１
２の試験では安全弁試験装置１４が必要であり、気水分
離器１１の気密試験ではコンプレッサ１７が必要で、試
験のたびに気水分離器用安全弁１２の脱着を行う必要が
あり、取付回数が増加するので、弁の取付不良になる可
能性が生ずる欠点があった。したがって、燃料電池発電
装置の運用保守コストの上昇、および信頼性低下の要因
になっていた。However, the safety valve 1 for the steam separator of the fuel cell power generator according to the above-mentioned conventional technique.
The safety valve test device 14 is required in the test No. 2, the compressor 17 is required in the air tightness test of the water-water separator 11, and the safety valve 12 for the water-water separator needs to be attached and detached each time the test is performed, so that the number of installations increases Therefore, there is a drawback that the valve may be improperly mounted. Therefore, it has been a factor of an increase in the operation and maintenance cost of the fuel cell power generator and a decrease in reliability.

【０００９】本発明は上記の事情に鑑みてなされたもの
で、従来空気劣化を防止するために使用されていた不活
性ガスボンベのガス圧を利用することにより、安全弁を
外すことなく簡易に安全弁の試験または気水分離器の気
密試験を実施できる燃料電池発電装置およびその試験方
法を提供することを目的とする。The present invention has been made in view of the above circumstances, and by utilizing the gas pressure of an inert gas cylinder that has been conventionally used to prevent air deterioration, the safety valve can be easily installed without removing the safety valve. An object of the present invention is to provide a fuel cell power generation device capable of performing a test or an airtight test of a steam separator and a test method thereof.

【００１０】[0010]

【課題を解決するための手段】上記目的を達成するため
に本発明の燃料電池発電装置は、気水分離器用安全弁元
バルブを介して安全弁がつながれた、気水分離器と、圧
力調節器のついた不活性ガスボンベを有する燃料電池発
電装置において、前記圧力調節器から前記燃料電池発電
装置にいたる不活性ガスの配管の一部が、試験用バルブ
を介して、前記気水分離器用安全弁元バルブと前記安全
弁との接続点または、前記気水分離器に接続されている
ことを特徴とするものである。In order to achieve the above object, a fuel cell power generator of the present invention is provided with a steam-water separator and a pressure regulator, in which a safety valve is connected via a safety-valve valve for a steam-water separator. In a fuel cell power generator having a connected inert gas cylinder, a part of an inert gas pipe from the pressure regulator to the fuel cell power generator is provided with a safety valve source valve for the steam separator through a test valve. Is connected to the connection point between the safety valve and the safety valve or to the steam separator.

【００１１】又、本発明の燃料電池発電装置の試験方法
は、前記燃料電池発電装置において、前記試験用バルブ
と前記気水分離器用安全弁元バルブを開いた後に、前記
配管内の不活性ガス圧を高めて、前記安全弁の動作を試
験することを特徴とする。Further, in the method for testing a fuel cell power generator of the present invention, in the fuel cell power generator, after opening the test valve and the safety valve valve for the steam separator, the inert gas pressure in the pipe is increased. To test the operation of the safety valve.

【００１２】又、本発明の燃料電池発電装置の試験方法
は、前記燃料電池発電装置において、前記不活性ガスボ
ンベからの不活性ガスを、前記気水分離器に導入した
後、前記試験用バルブを閉じ、前記気水分離器の内部圧
力低下から、前記気水分離器の気密性を試験することを
特徴とする。Further, in the fuel cell power generator test method of the present invention, in the fuel cell power generator, after introducing the inert gas from the inert gas cylinder into the steam separator, the test valve is turned on. It is characterized in that the airtightness of the steam-water separator is tested from the pressure drop inside the steam-water separator.

【００１３】[0013]

【作用】上記手段により本発明は、燃料電池発電装置の
気水分離器用安全弁の試験または気水分離器の気密試験
において、圧力調節器で圧力を調節した不活性ガスを試
験用バルブを介して気水分離器用安全弁と気水分離器用
安全弁元バルブ間または、気水分離器に接続することに
より、従来空気劣化の防止のために使用していた不活性
ガスボンベを利用し、気水分離器用安全弁を気水分離器
から外すことなく試験できるようにしたことに特徴があ
る。According to the above-mentioned means, in the test of the safety valve for the air / water separator of the fuel cell power generator or the air tightness test of the air / water separator, the inert gas whose pressure is adjusted by the pressure controller is passed through the test valve. A safety valve for a water / water separator is used between the safety valve for a water / water separator and a safety valve for a water / water separator, or by connecting to a steam / water separator, by using an inert gas cylinder that was conventionally used to prevent air deterioration. It is characterized in that it can be tested without removing it from the steam separator.

【００１４】従来技術とは、試験用バルブを設けて、こ
のバルブの開閉に基づいて気水分離器用安全弁を試験
し、コンプレッサを用いることなく気水分離器の気密試
験をする点が異なる。It differs from the prior art in that a test valve is provided, the safety valve for a water-water separator is tested based on the opening and closing of this valve, and the air-tightness test of the water-water separator is performed without using a compressor.

【００１５】[0015]

【実施例】以下、本発明の実施例を、図面を参照して詳
細に説明する。Embodiments of the present invention will now be described in detail with reference to the drawings.

【００１６】図１は本発明の一実施例の構成を示すブロ
ック図である。本実施例の構成部品として、図１中の１
８は試験用バルブである。図１中、図３と同一部分は同
一符号を付している。FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention. As a component of this embodiment, 1 in FIG.
Reference numeral 8 is a test valve. 1, those parts that are the same as those corresponding parts in FIG. 3 are designated by the same reference numerals.

【００１７】本発明にかかわる燃料電池発電装置の構成
は以下の通りである。すなわち窒素ガスボンベ１は圧力
調節器２に接続され、この圧力調節器２の出力は、流量
調節器７を介してセルスタック燃料極９に、流量調節器
８を介して改質器触媒層１０に、窒素ガス用安全弁元バ
ルブ６を介して窒素ガス用安全弁５に、窒素ガス用圧力
計元バルブ４を介して窒素ガス用圧力計３に、試験用バ
ルブ１８を介して気水分離器用安全弁１２にそれぞれ接
続されている。The structure of the fuel cell power generator according to the present invention is as follows. That is, the nitrogen gas cylinder 1 is connected to the pressure regulator 2, and the output of the pressure regulator 2 is sent to the cell stack fuel electrode 9 via the flow rate regulator 7 and to the reformer catalyst layer 10 via the flow rate regulator 8. , The safety valve 5 for nitrogen gas through the safety valve valve 6 for nitrogen gas, the pressure gauge for nitrogen gas 3 through the pressure valve source valve 4 for nitrogen gas, and the safety valve 12 for steam separator through the test valve 18. Respectively connected to.

【００１８】また、気水分離器１１は、気水分離器用安
全弁元バルブ１３を介して気水分離器用安全弁１２に接
続されている。気水分離器用圧力計１４は、気水分離器
用圧力計元バルブ１５を介して気水分離器１１に接続さ
れている。The steam separator 11 is connected to the steam separator safety valve 12 via a steam separator safety valve valve 13. The steam / water separator pressure gauge 14 is connected to the steam / water separator 11 via a steam / water separator pressure gauge source valve 15.

【００１９】以上のように構成した本発明の一実施例に
おける気水分離器用安全弁１２と気水分離器１１の試験
方法について述べる。A method of testing the safety valve 12 for steam-water separator and the steam-water separator 11 in the embodiment of the present invention configured as described above will be described.

【００２０】図１において、発電停止中における各々の
バルブ開閉状態は、窒素ガス用圧力計元バルブ４が開、
窒素ガス用安全弁元バルブ６が開、気水分離器用安全弁
元バルブ１３が開、気水分離器用圧力計元バルブ１５が
開、試験用バルブ１８が閉であり、圧力調節器２の調節
圧力は窒素ガス用安全弁５の規定作動圧力以下である。In FIG. 1, the nitrogen gas pressure gauge main valve 4 is opened when the valves are opened and closed while power generation is stopped.
The safety valve base valve 6 for nitrogen gas is open, the safety valve base valve 13 for steam separator is open, the pressure gauge base valve 15 for steam separator is open, the test valve 18 is closed, and the control pressure of the pressure controller 2 is It is below the specified operating pressure of the safety valve 5 for nitrogen gas.

【００２１】気水分離器用安全弁１２の試験を実施する
ときは、窒素ガス用安全弁元バルブ６を閉、気水分離器
用安全弁元バルブ１３を閉、試験用バルブ１８を閉に
し、圧力調節器２を調節し気水分離器用安全弁１２が作
動しない圧力にする。次に試験用バルブ１８を開にし、
圧力調節器２で圧力を増加させていき、気水分離器用安
全弁１２の作動状態を検査するとともに窒素ガス用圧力
計３にて気水分離器用安全弁１２の作動圧力を計測す
る。When carrying out the test of the safety valve 12 for the steam separator, the safety valve valve 6 for nitrogen gas is closed, the safety valve valve 13 for the steam separator is closed, the test valve 18 is closed, and the pressure regulator 2 is closed. Is adjusted to a pressure at which the safety valve 12 for the steam separator does not operate. Then open the test valve 18,
The pressure is increased by the pressure regulator 2, the operating state of the steam-water separator safety valve 12 is inspected, and the operating pressure of the steam-water separator safety valve 12 is measured by the nitrogen gas pressure gauge 3.

【００２２】気水分離器１１の気密試験を実施するとき
は、燃料電池発電装置は停止保管中で、窒素ガス用安全
弁元バルブ６を閉、気水分離器用安全弁元バルブ１３を
閉、試験用バルブ１８を閉にし、圧力調節器２を調節し
気水分離器１１の最高使用圧力以下する。次に試験用バ
ルブ１８と気水分離器用安全弁元バルブ１３を開にし、
圧力調節器２で圧力を増加させていき、気水分離器１１
を気密試験の規定圧力にする。その後、試験用バルブ１
８を閉にして気水分離器用圧力計１４にて気水分離器１
１の圧力変化を計測する。When carrying out the airtightness test of the steam separator 11, the fuel cell power generator is stopped and stored, the safety valve valve 6 for nitrogen gas is closed, the safety valve valve 13 for the steam separator is closed, and the test is performed. The valve 18 is closed and the pressure adjuster 2 is adjusted to the maximum working pressure of the steam separator 11. Next, open the test valve 18 and the safety valve base valve 13 for the steam separator,
The pressure is increased by the pressure regulator 2, and the steam separator 11
To the specified pressure for the air tightness test. Then, test valve 1
8 is closed and the steam / water separator pressure gauge 14 is used for steam / water separator 1
Measure the pressure change of 1.

【００２３】図２は本発明の他の実施例の構成を示すブ
ロック図である。図２中、図１と同一部分は同一符号を
付している。これらの部分は次のように接続されてい
る。FIG. 2 is a block diagram showing the configuration of another embodiment of the present invention. 2, those parts that are the same as those corresponding parts in FIG. 1 are designated by the same reference numerals. These parts are connected as follows.

【００２４】すなわち、窒素ガスボンベ１は圧力調節器
２に接続され、この圧力調節器２の出力は、流量調節器
７を介してセルスタック燃料極９に、流量調節器８を介
して改質器触媒層１０に、窒素ガス用安全弁元バルブ６
を介して窒素ガス用安全弁５に、窒素ガス用圧力計元バ
ルブ４を介して窒素ガス用圧力計３に、試験用バルブ１
８を介して気水分離器１１にそれぞれ接続されている。That is, the nitrogen gas cylinder 1 is connected to the pressure regulator 2, and the output of the pressure regulator 2 is passed through the flow rate regulator 7 to the cell stack fuel electrode 9 and through the flow rate regulator 8 to the reformer. The catalyst layer 10 has a safety valve base valve 6 for nitrogen gas.
To the nitrogen gas safety valve 5, through the nitrogen gas pressure gauge source valve 4 to the nitrogen gas pressure gauge 3, and the test valve 1
Each of them is connected to the steam separator 11 via 8.

【００２５】また、気水分離器１１は、気水分離器用安
全弁元バルブ１３を介して気水分離器用安全弁１２に、
気水分離器用圧力計元バルブ１５を介して気水分離器用
圧力計１４にそれぞれ接続されている。The steam / water separator 11 is connected to the steam / water separator safety valve 12 via the steam / water separator safety valve source valve 13.
It is connected to the steam / water separator pressure gauge 14 via the steam / water separator pressure gauge main valve 15, respectively.

【００２６】以上のように構成した本発明の他の実施例
の試験方法について述べる。A test method of another embodiment of the present invention configured as above will be described.

【００２７】図２において、燃料電池発電装置は停止保
管中で、通常時各々のバルブ開閉状態は、窒素ガス用圧
力計元バルブ４が開、窒素ガス用安全弁元バルブ６が
開、気水分離器用安全弁元バルブ１３が開、気水分離器
用圧力計元バルブ１５が開、試験用バルブ１８が閉であ
り、圧力調節器２の調節圧力は窒素ガス用安全弁５の規
定作動圧力以下である。In FIG. 2, the fuel cell power generator is stopped and stored, and when the valves are opened and closed in the normal state, the pressure gauge main valve 4 for nitrogen gas is opened, the safety valve base valve 6 for nitrogen gas is opened, and the water-gas separation is performed. The safety valve source valve 13 is open, the steam-water separator pressure gauge source valve 15 is open, and the test valve 18 is closed, and the control pressure of the pressure regulator 2 is equal to or lower than the specified operating pressure of the nitrogen gas safety valve 5.

【００２８】気水分離器用安全弁１２の試験を実施する
ときは、窒素ガス用安全弁元バルブ６を閉、気水分離器
用安全弁元バルブ１３を開、試験用バルブ１８を閉に
し、圧力調節器２を調節し気水分離器用安全弁１２が作
動しない圧力にする。次に試験用バルブ１８を開にし、
圧力調節器２で圧力を増加させていき、気水分離器用安
全弁１２の作動状態を検査するとともに窒素ガス用圧力
計３にて気水分離器用安全弁１２の作動圧力を計測す
る。When carrying out the test of the safety valve 12 for the steam separator, the safety valve valve 6 for nitrogen gas is closed, the safety valve valve 13 for the steam separator is opened, the test valve 18 is closed, and the pressure regulator 2 is closed. Is adjusted to a pressure at which the safety valve 12 for the steam separator does not operate. Then open the test valve 18,
The pressure is increased by the pressure regulator 2, the operating state of the steam-water separator safety valve 12 is inspected, and the operating pressure of the steam-water separator safety valve 12 is measured by the nitrogen gas pressure gauge 3.

【００２９】気水分離器１１の気密試験を実施するとき
は、窒素ガス用安全弁元バルブ６を閉、試験用バルブ１
８を閉にし、圧力調節器２を調節し気水分離器１１の最
高使用圧力以下する。次に試験用バルブ１８を開にし、
圧力調節器２で圧力を増加させていき、気水分離器１１
を気密試験の規定圧力にする。その後、試験用バルブ１
８を閉にして気水分離器用圧力計１４にて気水分離器１
１の圧力変化を計測する。When carrying out the air tightness test of the steam separator 11, the safety valve valve 6 for nitrogen gas is closed and the test valve 1
8 is closed and the pressure regulator 2 is adjusted to the maximum working pressure of the steam separator 11. Then open the test valve 18,
The pressure is increased by the pressure regulator 2, and the steam separator 11
To the specified pressure for the air tightness test. Then, test valve 1
8 is closed and the steam / water separator pressure gauge 14 is used for steam / water separator 1
Measure the pressure change of 1.

【００３０】なお、本発明の実施例として２例を示した
が、窒素ガスを送り込む位置は気水分離器および気水分
離器用安全弁に窒素ガスを送り込むことができればどこ
であってもよい。Although two examples have been shown as examples of the present invention, the position for feeding the nitrogen gas may be anywhere as long as the nitrogen gas can be fed to the steam separator and the safety valve for the steam separator.

【００３１】また、上記各実施例では窒素ガスを用いる
場合について説明したが、これに限らず他の不活性ガス
を用いてもよい。In each of the above embodiments, the case where nitrogen gas is used has been described, but the present invention is not limited to this, and other inert gas may be used.

【００３２】[0032]

【発明の効果】以上述べたように本発明によれば、燃料
電池停止動作時の燃料ガス置換と、燃料電池発電装置の
停止保管中セルスタック燃料極と改質器触媒層が空気と
接触して劣化することのないよう使用していた不活性ガ
スボンベのガス圧を利用して気水分離器用安全弁の試験
または気水分離器の気密試験に用いることができ、しか
も安全弁を外さずに試験を行うものであるから、安全弁
試験装置およびコンプレッサが不要になり、試験にかか
る時間と労力が削減され、取付不良になる危険性が回避
され、安全弁の試験または気水分離器の気密試験を安全
に行うことが可能となる。As described above, according to the present invention, the fuel gas is replaced when the fuel cell is stopped, and the cell stack fuel electrode and the reformer catalyst layer are in contact with air during the stop storage of the fuel cell power generator. It can be used to test the safety valve for a water-water separator or the airtightness test of a water-water separator by using the gas pressure of the inert gas cylinder that was used so that it will not deteriorate, and the test can be performed without removing the safety valve. This eliminates the need for safety valve test equipment and compressors, reduces testing time and effort, avoids the risk of improper installation, and makes safety valve testing or air-tight separator airtight testing safe. It becomes possible to do.

【図面の簡単な説明】[Brief description of drawings]

【図１】本発明の一実施例の構成を示すブロック図であ
る。FIG. 1 is a block diagram showing the configuration of an embodiment of the present invention.

【図２】本発明の他の実施例の構成を示すブロック図で
ある。FIG. 2 is a block diagram showing the configuration of another embodiment of the present invention.

【図３】従来例の構成を示すブロック図である。FIG. 3 is a block diagram showing a configuration of a conventional example.

【符号の説明】[Explanation of symbols]

１…窒素ガスボンベ、２…圧力調節器、３…窒素ガス用
圧力計、４…窒素ガス用圧力計元バルブ、５…窒素ガス
用安全弁、６…窒素ガス用安全弁元バルブ、７，８…流
量調節器、９…セルスタック燃料極、１０…改質器触媒
層、１１…気水分離器、１２…気水分離器用安全弁、１
３…気水分離器用安全弁元バルブ、１４…気水分離器用
圧力計、１５…気水分離器用圧力計元バルブ、１６…安
全弁試験装置、１７…コンプレッサ、１８…試験用バル
ブ。1 ... Nitrogen gas cylinder, 2 ... Pressure regulator, 3 ... Nitrogen gas pressure gauge, 4 ... Nitrogen gas pressure gauge main valve, 5 ... Nitrogen gas safety valve, 6 ... Nitrogen gas safety valve main valve, 7, 8 ... Flow rate Regulator, 9 ... Cell stack fuel electrode, 10 ... Reformer catalyst layer, 11 ... Steam separator, 12 ... Steam separator safety valve, 1
3 ... Safety valve source valve for steam separator, 14 ... Pressure gauge for steam separator, 15 ... Pressure gauge source valve for steam separator, 16 ... Safety valve test device, 17 ... Compressor, 18 ... Test valve.

───────────────────────────────────────────────────── フロントページの続き (72)発明者 飯田 茂実 東京都千代田区内幸町一丁目１番６号 日 本電信電話株式会社内 (72)発明者 北田 秀一 東京都千代田区内幸町一丁目１番６号 日 本電信電話株式会社内 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Inventor Shigumi Iida 1-6, Uchisaiwaicho, Chiyoda-ku, Tokyo Nihon Telegraph and Telephone Corporation (72) Shuichi Kitada 1-6-1, Uchisaiwaicho, Chiyoda-ku, Tokyo Nippon Telegraph and Telephone Corporation

Claims (3)

【特許請求の範囲】[Claims] 【請求項１】 気水分離器用安全弁元バルブを介して安
全弁がつながれた、気水分離器と、圧力調節器のついた
不活性ガスボンベを有する燃料電池発電装置において、
前記圧力調節器から前記燃料電池発電装置にいたる不活
性ガスの配管の一部が、試験用バルブを介して、前記気
水分離器用安全弁元バルブと前記安全弁との接続点また
は、前記気水分離器に接続されていることを特徴とする
燃料電池発電装置。1. A fuel cell power generator having a steam separator, which is connected to a safety valve via a safety valve valve for steam separator, and an inert gas cylinder with a pressure regulator,
A part of the piping of the inert gas from the pressure regulator to the fuel cell power generator is a test valve, a connection point between the safety valve source valve for the steam separator and the safety valve, or the steam separation. A fuel cell power generator characterized in that it is connected to a fuel cell. 【請求項２】 請求項１記載の燃料電池発電装置におい
て、前記試験用バルブと前記気水分離器用安全弁元バル
ブを開いた後に、前記配管内の不活性ガス圧を高めて、
前記安全弁の動作を試験することを特徴とする燃料電池
発電装置の試験方法。2. The fuel cell power generator according to claim 1, wherein after opening the test valve and the safety valve source valve for the steam separator, the inert gas pressure in the pipe is increased,
A method for testing a fuel cell power generator, comprising: testing the operation of the safety valve. 【請求項３】 請求項１記載の燃料電池発電装置におい
て、前記不活性ガスボンベからの不活性ガスを、前記気
水分離器に導入した後、前記試験用バルブを閉じ、前記
気水分離器の内部圧力低下から、前記気水分離器の気密
性を試験することを特徴とする燃料電池発電装置の試験
方法。3. The fuel cell power generator according to claim 1, wherein after introducing the inert gas from the inert gas cylinder into the steam separator, the test valve is closed and the steam separator is closed. A test method for a fuel cell power generator, comprising testing the airtightness of the steam separator from an internal pressure drop.
JP5184041A 1993-07-26 1993-07-26 Fuel cell power generator unit and testing method thereof Pending JPH0737600A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5184041A JPH0737600A (en) 1993-07-26 1993-07-26 Fuel cell power generator unit and testing method thereof

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5184041A JPH0737600A (en) 1993-07-26 1993-07-26 Fuel cell power generator unit and testing method thereof

Publications (1)

Publication Number Publication Date
JPH0737600A true JPH0737600A (en) 1995-02-07

Family

ID=16146331

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5184041A Pending JPH0737600A (en) 1993-07-26 1993-07-26 Fuel cell power generator unit and testing method thereof

Country Status (1)

Country Link
JP (1) JPH0737600A (en)

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