JPH03187159A - Water cooling fuel cell - Google Patents
Water cooling fuel cellInfo
- Publication number
- JPH03187159A JPH03187159A JP1323907A JP32390789A JPH03187159A JP H03187159 A JPH03187159 A JP H03187159A JP 1323907 A JP1323907 A JP 1323907A JP 32390789 A JP32390789 A JP 32390789A JP H03187159 A JPH03187159 A JP H03187159A
- Authority
- JP
- Japan
- Prior art keywords
- cooling
- water
- piping member
- dissolved oxygen
- piping
- 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
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
Description
【発明の詳細な説明】
［発明の目的〕
（産業上の利用分野）
本発明は燃料電池本体を冷却水を供給する水冷却系によ
り冷却する燃料電池の水冷却方法に関する。DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Industrial Application Field) The present invention relates to a water cooling method for a fuel cell in which a fuel cell main body is cooled by a water cooling system that supplies cooling water.
（従来の技術）
従来燃料電池本体の冷却方式には、空冷方式と水冷方式
があり、このうち空冷方式は配管および冷却体を何等必
要としないので、保守管理等が極めて容易であるという
利点を有するが、冷却効率が悪いので、従来水冷方式が
多く使用されている。(Prior art) Conventional cooling methods for fuel cells include air-cooling and water-cooling. Of these, air-cooling does not require any piping or cooling bodies, so it has the advantage of being extremely easy to maintain and manage. However, due to its poor cooling efficiency, conventional water cooling methods have been widely used.
第５図は従来の水冷方式の燃料電池の系統図であり、図
示しない燃料電池本体を冷却するために電池冷却体１に
形成されている冷却水路から出即し
た冷却水は、配管２を経て蒸気分離器３に供給される。FIG. 5 is a system diagram of a conventional water-cooled fuel cell, in which cooling water immediately comes out of a cooling channel formed in a cell cooling body 1 to cool a fuel cell main body (not shown), and is passed through a pipe 2. It is supplied to the steam separator 3.
この蒸気分離器３では蒸気と冷却水に分離され、この分
離された冷却水は、配管部材４を通り、この途中にある
給水配管系統５からの給水と合流され、冷却水ポンプ６
により配管部材７、フィルタ８、配管部材９を順次経て
前記再び冷却体１の冷却水路に供給される。This steam separator 3 separates steam and cooling water, and this separated cooling water passes through a piping member 4 and is combined with water supplied from a water supply piping system 5 located midway through the piping member 4, and the cooling water pump 6
The water is supplied to the cooling channel of the cooling body 1 again through the piping member 7, the filter 8, and the piping member 9 in this order.
（発明が解決しようとする課題）
第５図のような構成の燃料電池は、水冷方式である為、
冷却効率の面では、空冷方式に比べて有利であるが、冷
却水を流通させる配管部材や燃料電池本体を冷却するた
めの冷却体１の冷却水路の腐食およびこの冷却水路の目
詰りの問題がある。(Problem to be solved by the invention) Since the fuel cell with the configuration shown in Fig. 5 is a water-cooled system,
In terms of cooling efficiency, it is advantageous compared to air-cooling systems, but there are problems with corrosion of the cooling waterways of the cooling body 1 that cools the piping members through which cooling water flows and the fuel cell main body, and the problems of clogging of these cooling waterways. be.
本発明は、水冷却系の腐食、目詰りを抑制できる燃料電
池の水冷却方法を提供することを目的とする。An object of the present invention is to provide a water cooling method for a fuel cell that can suppress corrosion and clogging of a water cooling system.
［発明の構成］
（課題を解決するための手段）
本発明は前記目的を達成するため、燃料電池本体を冷却
水により冷却可能な冷却水路を有する電池冷却体と、こ
の冷却体に冷却水を供給する配管部材を備えた燃料電池
において、前記冷却体に冷却水を供給する場合、前記冷
却体の材質および前記配管部材の材質に適した所望の溶
存酸素濃度に調整するようにした燃料電池の水冷却方法
である。[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above-mentioned object, the present invention includes a battery cooling body having a cooling channel capable of cooling the fuel cell main body with cooling water, and a cooling water supply to the cooling body. When supplying cooling water to the cooling body in a fuel cell equipped with a supply piping member, the fuel cell is configured to adjust the dissolved oxygen concentration to a desired level suitable for the material of the cooling body and the material of the piping member. It is a water cooling method.
（作 用）
本発明によれば、水冷却系を構成している燃料電池本体
を冷却する電池冷却体と配管部材の材質に適した所望の
溶存酸素濃度に調整することにより、水冷却系の腐食、
目詰りを抑制できる。(Function) According to the present invention, the concentration of dissolved oxygen in the water cooling system is adjusted to a desired concentration suitable for the material of the cell cooling body and piping members that cool the fuel cell main body constituting the water cooling system. corrosion,
Can prevent clogging.
（実施例）
以下、本発明の実施例について図面を参照して説明する
。第１図は本発明の第１の実施例を説明するための系統
図である。第１図の冷却体１は、これには図示しない燃
料電池本体を冷却するための冷却水路を有している。こ
の冷却体ｌの冷却水路の出口側と蒸気分離器３の入口側
との間に配管部材２が設けられ、蒸気分離器３の出口側
と冷却水ポンプ６の人口側との間に配管部材４が設けら
れ、冷却水ポンプ６の出口側とフィルタ８の人口側との
間に配管部材７が設けられ、フィルタ８の出口側と冷却
体１の冷却水路の入口側に配管部材９が設けられている
。そして、前記配管部材４には図示しない給水装置から
の給水が給水配管系統５により供給できるようになって
おり、この給水配管系統５の途中には、脱気器等の溶存
酸素濃度調整装置１５が設けられ、これにより溶存酸素
濃度調整ができるようになっている。さらに、前記冷却
水ポンプ６の下流側の配管部材７の途中には、分岐配管
部材１８が設けられ、これにより取り込まれるサンプリ
ング水は、熱交換器１６により冷却され、その後、溶存
酸素濃度計１７により溶存酸素濃度が検出されるように
なっている。(Example) Hereinafter, an example of the present invention will be described with reference to the drawings. FIG. 1 is a system diagram for explaining a first embodiment of the present invention. The cooling body 1 shown in FIG. 1 has a cooling water channel (not shown) for cooling the fuel cell main body. A piping member 2 is provided between the outlet side of the cooling channel of the cooling body l and the inlet side of the steam separator 3, and a piping member 2 is provided between the outlet side of the steam separator 3 and the artificial side of the cooling water pump 6. 4, a piping member 7 is provided between the outlet side of the cooling water pump 6 and the artificial side of the filter 8, and a piping member 9 is provided between the outlet side of the filter 8 and the inlet side of the cooling channel of the cooling body 1. It is being Water from a water supply device (not shown) can be supplied to the piping member 4 through a water supply piping system 5, and a dissolved oxygen concentration adjusting device 15 such as a deaerator is installed in the middle of the water supply piping system 5. is provided so that the dissolved oxygen concentration can be adjusted. Further, a branch piping member 18 is provided in the middle of the piping member 7 on the downstream side of the cooling water pump 6, and the sampling water taken in by this is cooled by the heat exchanger 16, and then the dissolved oxygen concentration meter 17 Dissolved oxygen concentration is now detected.
前記冷却体１の冷却水路および配管部材９は、いずれも
ステンレス鋼で形成され、また配管部材２、蒸気分離器
３、配管部材４、配管部材７はいずれも炭素鋼により形
成されている。The cooling channel of the cooling body 1 and the piping member 9 are all made of stainless steel, and the piping member 2, the steam separator 3, the piping member 4, and the piping member 7 are all made of carbon steel.
このような構成の配管系統において、冷却体１の冷却水
路を出た冷却水は、配管部材２を経て蒸気分離器３に供
給される。ここで、分離された冷却水は、配管部材４に
おいて、分岐配管部材１８により分流されたサンプリン
グ水を溶存酸素濃度計１７で検出し、溶存酸素濃度調整
装ｇ１１５により所望の値に：Ａｇ１する。この溶存酸
素濃度が調整された冷却水は、冷却水ポンプ６により、
配管部材７、フィルタ８、配管部材９、冷却体１の冷却
水路へ供給される。In the piping system having such a configuration, the cooling water exiting the cooling channel of the cooling body 1 is supplied to the steam separator 3 via the piping member 2. Here, in the piping member 4, the separated cooling water is divided into sampling water by the branch piping member 18, which is detected by the dissolved oxygen concentration meter 17, and adjusted to a desired value by the dissolved oxygen concentration adjustment device g115: Ag1. The cooling water with adjusted dissolved oxygen concentration is supplied to the cooling water by the cooling water pump 6.
It is supplied to the cooling channels of the piping member 7, filter 8, piping member 9, and cooling body 1.
以上述べた水冷却系において、溶存酸素濃度調整装ｒ１
１１５により溶存酸素濃度計１７を見ながら、溶存酸素
濃度を５０〜２００ ｐｐｂに調整すれば、配管部材２
、蒸気分離器３、配管部材４および配管部材７の腐食が
最小となることが、以下の実験結果から明らかである。In the water cooling system described above, the dissolved oxygen concentration adjustment device r1
If the dissolved oxygen concentration is adjusted to 50 to 200 ppb while checking the dissolved oxygen concentration meter 17 using 115, the piping member 2
It is clear from the following experimental results that the corrosion of the steam separator 3, piping member 4, and piping member 7 is minimized.
第２図はこの結果、すなわち炭素鋼の腐食速度に及ぼす
溶存酸素濃度の影響を求めたものである。この場合、実
験は２００℃の高温流水中に、５Ｂ４６の炭素鋼からな
る試験片を置き、腐食減量より腐食速度を求めたもので
ある。溶存酸素濃度の調整は、溶存酸素濃度調整装置１
５の脱気タンクに吹込むガス中の酸素濃度を変化させ、
溶存酸素濃度の測定は、試験片入口水を計測ラインに接
続して行ったものである。FIG. 2 shows the results, that is, the influence of dissolved oxygen concentration on the corrosion rate of carbon steel. In this case, the experiment involved placing a test piece made of 5B46 carbon steel in high-temperature flowing water at 200°C, and determining the corrosion rate from the corrosion loss. To adjust the dissolved oxygen concentration, use the dissolved oxygen concentration adjustment device 1.
By changing the oxygen concentration in the gas blown into the degassing tank in step 5,
The dissolved oxygen concentration was measured by connecting the test piece inlet water to the measurement line.
第２図から明らかなように、炭素鋼の場合、溶存酸素濃
度を５０〜２００１）ｐｂに調整すれば、炭素鋼の腐食
速度は最小となる。また、図示しないがステンレス鋼の
応力割れに関しても、溶存酸素濃度が２００ ｐｐｂ以
下であれば、問題ないことが実験結果より明かである。As is clear from FIG. 2, in the case of carbon steel, if the dissolved oxygen concentration is adjusted to 50 to 2001) ppb, the corrosion rate of carbon steel is minimized. Although not shown, it is clear from experimental results that there is no problem with stress cracking in stainless steel as long as the dissolved oxygen concentration is 200 ppb or less.
このように、第１図において、溶存酸素濃度を５０ Ｊ
）Ｊ）ｂ以上で、２００ ｐｐｂ以下に調整することに
より、材料が炭素鋼からなる配管部材２、蒸気分離器３
、配管部材４及び配管部材７の腐食量が最小となり、冷
却系の腐食、目詰りが抑制できる。In this way, in Figure 1, the dissolved oxygen concentration is set to 50 J.
) J) By adjusting the amount to be more than b and less than 200 ppb, piping members 2 and steam separators 3 made of carbon steel.
, the amount of corrosion of the piping members 4 and 7 is minimized, and corrosion and clogging of the cooling system can be suppressed.
次に他の実験結果について説明する。第３図は銅または
銅合金の腐食速度に及ぼす溶存酸素濃度の影響を求めた
ものである。この場合、実験は２００℃の高温流水中に
、無酸素銅からなる試験片を置き、腐食減量より腐食速
度を求めたものである。溶存酸素濃度の調整は、溶存酸
素濃度調整装置１５の脱気タンクに吹込むガス中の酸素
濃度を変化させ、溶存酸素濃度の測定は、試験片人口水
を計測ラインに接続して行った。Next, other experimental results will be explained. Figure 3 shows the effect of dissolved oxygen concentration on the corrosion rate of copper or copper alloy. In this case, the experiment involved placing a test piece made of oxygen-free copper in high-temperature flowing water at 200°C, and determining the corrosion rate from the corrosion loss. The dissolved oxygen concentration was adjusted by changing the oxygen concentration in the gas blown into the degassing tank of the dissolved oxygen concentration adjusting device 15, and the dissolved oxygen concentration was measured by connecting the test piece artificial water to the measurement line.
第３図から明らかなように、無酸素銅の場合、溶存酸素
濃度を１０ｐｐｂ以下に調整すれば、無酸素銅の腐食速
度は最小となる。As is clear from FIG. 3, in the case of oxygen-free copper, if the dissolved oxygen concentration is adjusted to 10 ppb or less, the corrosion rate of oxygen-free copper is minimized.
第４図は本発明の第２の実施例を説明するための系統図
であり、第１図とはほぼ同様な構成となっており、第１
図とは以下の点が異なる。すなわち、冷却水路を有する
電池冷却体１０（第１図の１に対応）を、銅または銅合
金で形成したものである。この場合には、配管部材１１
（第１図の２に対応） 蒸気分離器１２（第１図の３に
対応）、配管部材１３（第１図の４に対応）、配管部材
１４（第１図の７に対応）をそれぞれ炭素鋼で形成した
場合には、銅または銅合金の腐食速度と同時に最小とす
るような溶存酸素濃度は得られないことは第２図および
第３図より明らかである。FIG. 4 is a system diagram for explaining the second embodiment of the present invention, which has almost the same configuration as FIG.
The following points differ from the figure. That is, the battery cooling body 10 (corresponding to 1 in FIG. 1) having cooling channels is formed of copper or a copper alloy. In this case, the piping member 11
(corresponds to 2 in Figure 1) Steam separator 12 (corresponds to 3 in Figure 1), piping member 13 (corresponds to 4 in Figure 1), and piping member 14 (corresponds to 7 in Figure 1), respectively. It is clear from FIGS. 2 and 3 that when made of carbon steel, it is not possible to obtain a dissolved oxygen concentration that simultaneously minimizes the corrosion rate of copper or copper alloy.
このため、前記配管部材１１．１３．１４および蒸気分
離器１２を、それぞれ炭素鋼で形成せず、ステンレス鋼
で形成するようにしたしたものである。For this reason, the piping members 11, 13, 14 and the steam separator 12 are not made of carbon steel, but are made of stainless steel.
この実施例においても、溶存酸素濃度調整装置１５によ
り溶存酸素濃度計１７を見ながら、溶存酸素濃度を１０
ｐｐｂ以下に調整すれば、配管部材１１、蒸気分離器１
２、配管部材１３および配管部材１４の腐食を最小とす
ることができる。In this embodiment as well, while watching the dissolved oxygen concentration meter 17 using the dissolved oxygen concentration adjusting device 15, the dissolved oxygen concentration is adjusted to 10
If adjusted to ppb or less, piping member 11, steam separator 1
2. Corrosion of the piping members 13 and 14 can be minimized.
［発明の効果］
以上述べた本発明によれば、水冷却系を構成している燃
料電池本体を冷却するため冷却水路を有する冷却体およ
び配管部材の材質に適した所望の溶存酸素濃度に調整す
ることにより、水冷却系の腐食、目詰りを抑制できる燃
料電池の水冷却方法を提供できる。[Effects of the Invention] According to the present invention described above, the dissolved oxygen concentration can be adjusted to a desired concentration suitable for the material of the cooling body having the cooling channel and the piping members for cooling the fuel cell main body constituting the water cooling system. By doing so, it is possible to provide a water cooling method for a fuel cell that can suppress corrosion and clogging of the water cooling system.
第１図は本発明による燃料電池の水冷却方法の第１の実
施例を説明するための系統図、第２図は第１図の作用効
果を説明するための炭素鋼の腐食速度に及ぼす溶存酸素
濃度の関係を示す実験結果、第３図は第１図の作用効果
を説明するための無酸素銅の腐食速度に及ぼす溶存酸素
濃度の関係を示す実験結果、第４図は本発明による燃料
電池の水冷却方法の第２の実施例を説明するための系統
図、第５図は従来の燃料電池の水冷却方法の一例を説明
するための系統図である。
１・・・電池冷却体、２・・・配管部材、３・・・蒸気
分離器、４・・・配管部材、５・・・給水配管系統、６
・・・冷却水ポンプ、７・・・配管部材、８・・・フィ
ルタ、９・・・配管部材、１０・・・電池冷却体、１１
・・・配管部材、１２・・・蒸気分離器、１３・・・配
管部材、１４・・・配管部材、１５・・・溶存酸素濃度
調整装置、１６・・・熱交換器、１７・・・溶存酸素濃
度計、１８・・・分岐配管部材。FIG. 1 is a system diagram for explaining the first embodiment of the water cooling method for a fuel cell according to the present invention, and FIG. 2 is a system diagram for explaining the effect of the method shown in FIG. Figure 3 shows the experimental results showing the relationship between the oxygen concentration and the dissolved oxygen concentration on the corrosion rate of oxygen-free copper to explain the effects of Figure 1. FIG. 5 is a system diagram for explaining a second embodiment of a water cooling method for a battery. FIG. 5 is a system diagram for explaining an example of a conventional water cooling method for a fuel cell. DESCRIPTION OF SYMBOLS 1... Battery cooling body, 2... Piping member, 3... Steam separator, 4... Piping member, 5... Water supply piping system, 6
... Cooling water pump, 7... Piping member, 8... Filter, 9... Piping member, 10... Battery cooling body, 11
... Piping member, 12... Steam separator, 13... Piping member, 14... Piping member, 15... Dissolved oxygen concentration adjustment device, 16... Heat exchanger, 17... Dissolved oxygen concentration meter, 18...branch piping member.
Claims (1)
る電池冷却体と、この冷却体に冷却水を供給する配管部
材を備えた燃料電池において、前記冷却体に冷却水を供
給する場合、前記冷却体の材質および前記配管部材の材
質に適した所望の溶存酸素濃度に調整するようにした燃
料電池の水冷却方法。In a fuel cell equipped with a battery cooling body having a cooling waterway capable of cooling the fuel cell main body with cooling water, and a piping member for supplying cooling water to the cooling body, when supplying cooling water to the cooling body, the cooling water is supplied to the cooling body. A water cooling method for a fuel cell, which adjusts the dissolved oxygen concentration to a desired level suitable for the material of the body and the material of the piping member.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1323907A JPH03187159A (en) | 1989-12-15 | 1989-12-15 | Water cooling fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1323907A JPH03187159A (en) | 1989-12-15 | 1989-12-15 | Water cooling fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH03187159A true JPH03187159A (en) | 1991-08-15 |
Family
ID=18159947
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1323907A Pending JPH03187159A (en) | 1989-12-15 | 1989-12-15 | Water cooling fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH03187159A (en) |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61253771A (en) * | 1985-04-30 | 1986-11-11 | Toshiba Corp | Fuel cell system |
| JPS61290664A (en) * | 1985-06-17 | 1986-12-20 | インタ−ナシヨナル・フユ−エル・セルズ・コ−ポレイシヨン | Apparatus having passage for water solution and operation ofboiler for using feed water to generate water solution |
| JPH01264179A (en) * | 1988-02-12 | 1989-10-20 | Internatl Fuel Cells Corp | Cooler of water-cooled fuel battery generator |
-
1989
- 1989-12-15 JP JP1323907A patent/JPH03187159A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS61253771A (en) * | 1985-04-30 | 1986-11-11 | Toshiba Corp | Fuel cell system |
| JPS61290664A (en) * | 1985-06-17 | 1986-12-20 | インタ−ナシヨナル・フユ−エル・セルズ・コ−ポレイシヨン | Apparatus having passage for water solution and operation ofboiler for using feed water to generate water solution |
| JPH01264179A (en) * | 1988-02-12 | 1989-10-20 | Internatl Fuel Cells Corp | Cooler of water-cooled fuel battery generator |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| US6326709B1 (en) | Cooling system and method for cooling a generator | |
| CN107091754A (en) | A Simulation Test System of Internal Cooling System of High Pressure DC Valve | |
| JPH06277665A (en) | Producing apparatus for high purity water | |
| JP2025109951A (en) | Cooling water control device and method for marine internal combustion engine | |
| JPH03187159A (en) | Water cooling fuel cell | |
| US4043865A (en) | Pressurized-water reactor coolant treatment system | |
| CA1309130C (en) | Controlling oxygen concentration in fuel cell cooling water loops | |
| JP2924671B2 (en) | Water treatment system for fuel cell power plant | |
| JP2023115991A (en) | Water electrolysis system and method for controlling water electrolysis system | |
| CN212136602U (en) | Reaction gas rapid temperature adjusting device for fuel cell test | |
| TW202330091A (en) | Method and device for continuous production of ultrapure water, and use of ultrapure water thereof, and device for cutting parts | |
| JPH0913199A (en) | Electroplating equipment | |
| JP3280164B2 (en) | Steam condensed water circulation device for fuel cell power generator and control method thereof | |
| KR860001444A (en) | Fluid reducer control device | |
| JPH103935A (en) | Fuel cell generator | |
| JPH03284323A (en) | Method and apparatus for membrane separation | |
| JPH0434167B2 (en) | ||
| US20240342657A1 (en) | Water treatment system and water treatment method | |
| JPH09259907A (en) | Fuel cell generator | |
| CN218932321U (en) | Hydrogen production test system | |
| JP2022065685A (en) | Fuel cell system | |
| JPS63214599A (en) | Control device for liquefied natural gas gasifying facility | |
| FI90292C (en) | Control method for controlling temperature in a reactor used in polymerization of olefins | |
| JPH1043552A (en) | Membrane separation device and control method of operating pressure | |
| JP3354299B2 (en) | Automatic high-pressure and high-pressure sample water supply system |