JP2734632B2 - Cleaning device for electrode substrate for fuel cell - Google Patents
Cleaning device for electrode substrate for fuel cellInfo
- Publication number
- JP2734632B2 JP2734632B2 JP1134405A JP13440589A JP2734632B2 JP 2734632 B2 JP2734632 B2 JP 2734632B2 JP 1134405 A JP1134405 A JP 1134405A JP 13440589 A JP13440589 A JP 13440589A JP 2734632 B2 JP2734632 B2 JP 2734632B2
- Authority
- JP
- Japan
- Prior art keywords
- base material
- wind tunnel
- fuel cell
- electrode substrate
- electrode base
- 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 - Lifetime
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
- Inert Electrodes (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 この発明は、切削加工によりその片面に溝が形成され
た多孔質のカーボン板よりなる燃料電池用電極基材の清
掃装置に関する。Description: BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an apparatus for cleaning an electrode substrate for a fuel cell, which is made of a porous carbon plate having a groove formed on one side by cutting.
燃料電池の燃料電極や空気電極に使用される電極基材
は、多孔質で通気性のあるカーボン板に燃料ガスや空気
を通流させる溝を設けるため、その片面に切削加工がな
される。その際に切削時に発生する切粉が電極基材の多
孔質内に入り込み、通気性を妨げるので、ガス透過率を
向上させるためこの切粉の除去をする必要がある。An electrode substrate used for a fuel electrode or an air electrode of a fuel cell is cut on one side to provide a groove for allowing fuel gas or air to flow through a porous and air-permeable carbon plate. At this time, chips generated at the time of cutting enter the porous material of the electrode base material and impair the air permeability. Therefore, it is necessary to remove the chips in order to improve the gas permeability.
従来は第2図の断面図で示すごとく、超音波発振器17
を備えた超音波槽14に、水15をはって、洗浄液12を満た
した洗浄パット13をうかべ、その中に電極基材1を溝加
工面が下に向くように配して超音波洗浄により切粉の除
去をしていた。洗浄液中にて浸漬して濡れた電極基材を
超音波洗浄した後乾燥処理するには、第3図の断面図で
示すように、ヒータ19とファン18を備えた乾燥炉16の棚
に濡れた電極基材1を入れて加熱し時間をかけて乾燥し
ていた。Conventionally, as shown in the sectional view of FIG.
Water 15 is placed in an ultrasonic bath 14 equipped with a cleaning liquid 13 and a cleaning pad 13 filled with a cleaning liquid 12 is seen, and the electrode substrate 1 is disposed therein so that the grooved surface faces downward. To remove chips. In order to carry out the drying process after ultrasonic cleaning of the wet electrode substrate by immersing it in the cleaning liquid, as shown in the sectional view of FIG. The electrode substrate 1 was put in the container, heated and dried over time.
前述のごくと切削加工中に発生する切粉を電極基材よ
り除去する従来の超音波洗浄と乾燥処理では、電極基材
を液中に浸漬し、そのあと加熱乾燥するため、板材に歪
みが生じて平面度が損なわれるため、燃料電池の組立て
で電極積層時に締め付け圧力で電極基材が破損するなど
の不具合いが生じることがあった。また洗浄液の頻繁な
交換とその廃液の処理には多くの費用を要し、乾燥処理
のために多くの時間を要した。In the conventional ultrasonic cleaning and drying process, which removes chips generated during cutting from the electrode base material, the electrode base material is immersed in a liquid and then heated and dried. As a result, the flatness is impaired, so that in the assembly of the fuel cell, inconveniences such as damage to the electrode base material due to the tightening pressure at the time of laminating the electrodes may occur. In addition, frequent replacement of the cleaning liquid and disposal of the waste liquid required a lot of cost, and much time was required for the drying treatment.
この発明はこの点にかんがみなされたもので、電極基
材の平面度を損なうことなく、安価に短時間で処理でき
る燃料電池用電極基材の清掃装置にかかわる。The present invention has been made in view of this point, and relates to a cleaning device for an electrode substrate for a fuel cell, which can be processed in a short time at low cost without impairing the flatness of the electrode substrate.
上記課題を解決するために、この発明によれば、切削
加工によりその片面に溝が形成された多孔質のカーボン
板よりなる燃料電池用電極基材の清掃装置であって、固
定器台に取りつけられその上面側に電極基材を載置する
格子板と、この格子板に電極基材が載置されたときこの
電極基材の上面にガスケットを介して取り付けられる圧
気取入口を有する圧気フードと、前記格子板の下面に設
置された吸引フードと、この吸引フードに接続された第
1の風洞と、この第1の風洞とフィルターを介して接続
された第2の風洞と、この第2の風洞に接続された排気
口を有する真空ポンプとを備えるものとする。According to the present invention, there is provided a cleaning device for an electrode base material for a fuel cell, comprising a porous carbon plate having a groove formed on one surface thereof by a cutting process. A grid plate on which an electrode substrate is placed on the upper surface side thereof, and a compressed air hood having a compressed air inlet attached via a gasket to the upper surface of the electrode substrate when the electrode substrate is placed on the grid plate. A suction hood installed on the lower surface of the grid plate, a first wind tunnel connected to the suction hood, a second wind tunnel connected to the first wind tunnel via a filter, A vacuum pump having an exhaust port connected to the wind tunnel.
この発明によると、固定器台に取りつけられ、吸引フ
ードの上に配された格子板の上に、溝を切削加工された
片面を下にして多孔質の電極基材を設置し、ガスケット
を介して圧気取入口を有する圧気フードを取り付け、こ
の圧気フードの圧気取入口より圧気を封入し、真空ポン
プにより封入された圧気を排気する運転を行うと、電極
基材の切削加工時に多孔質の孔の中に蓄積された切粉が
圧気でもって吹き飛ばされ格子板を介して吸引フードに
吹き寄せられ、この抜け出た切粉は第1の風洞を経てフ
ィルターで捕集される。According to the present invention, a porous electrode base material is installed on a lattice plate attached to a fixing device base and arranged on a suction hood, with a groove-cut one side facing down, and a gasket is interposed therebetween. A compressed air hood having a compressed air inlet is attached, and the compressed air is sealed from the compressed air inlet of the compressed air hood, and the operation of exhausting the sealed air by a vacuum pump is performed. The chips accumulated in the inside are blown off with pressure and blown to the suction hood through the lattice plate, and the chips that have escaped are collected by the filter through the first wind tunnel.
以下この発明を実施例に基づいて説明する。第1図は
この発明の実施例を示す燃料電池用電極基材の清掃装置
の配置図である。この図において、格子板3の上部に切
削加工された溝を下にして配された切削時の切粉を含ん
だ電極基材1はその上部にガスケット7を介して圧気取
入口8を有する圧気フード2を設置し、その下部には格
子板3を介して器台9に設置された吸引フード6が取り
付けられている。この吸引フード6の下部は第1の風洞
10に接続されこの風洞と第2の風洞11とでフィルター4
を挟持している。第2の風洞11は真空ポンプ5に接続さ
れていてこのポンプよりの排気はこのポンプに取り付け
られた排気口21より排出される。かかる構成の装置にお
いて、真空ポンプ5を運転し、圧気フード2に圧気取入
口8より圧気を供給すると、孔内に切削加工時の切粉を
含んでいる電極基材1は、溝加工されたカーボン板の背
後面多孔質の通気孔より圧気が進入し、切削加工された
溝付近の孔に蓄積された切削時の切粉を吹き飛ばし、清
掃する。電極基材1より分離された切粉は圧気とともに
吸引フード6に入って第1の風洞10を介してフィルター
4に至り、ここで捕集されて残りの圧気のみが真空ポン
プ5に入って排気口21より排出される。Hereinafter, the present invention will be described based on examples. FIG. 1 is a layout view of a fuel cell electrode substrate cleaning apparatus according to an embodiment of the present invention. In this figure, an electrode substrate 1 containing cutting chips at the time of cutting, which is disposed on the upper part of a grid plate 3 with a cut groove, has a compressed air inlet 8 through a gasket 7 on the upper part thereof. A hood 2 is installed, and a suction hood 6 installed on a base 9 via a grid plate 3 is attached to a lower portion of the hood 2. The lower part of this suction hood 6 is the first wind tunnel
Filter 4 connected to this wind tunnel and second wind tunnel 11 connected to 10
Is sandwiched. The second wind tunnel 11 is connected to the vacuum pump 5, and exhaust from the pump is exhausted from an exhaust port 21 attached to the pump. In the apparatus having such a configuration, when the vacuum pump 5 is operated to supply compressed air to the compressed air hood 2 from the compressed air inlet 8, the electrode base material 1 containing cutting chips in the hole is cut into grooves. Compressed air enters through the porous vents on the back side of the carbon plate, and blows off the cutting chips accumulated in the holes near the cut grooves to clean them. The chips separated from the electrode substrate 1 enter the suction hood 6 together with the compressed air and reach the filter 4 through the first wind tunnel 10, where they are collected and only the remaining compressed air enters the vacuum pump 5 and is exhausted. Exhausted from mouth 21.
この発明は前述のように電極基材を液に浸したり熱で
乾燥する工程がないので、切粉の清掃処理したあとでの
平面度を損なわず、高い品質の電極基材として燃料電池
に組み込むことできる。また電極基材より剥離した切粉
はフィルターに捕集されて安易に取り出せて処理できる
ので、従来例のように洗浄廃液を処理して分離するなど
の手間と費用が省ける。そのうえ従来例のごとく洗浄液
に浸漬して超音波振動を加え、乾燥炉で乾燥するという
長い処理時間が大幅に短縮できて作業効率を上げること
ができる。Since the present invention does not have a step of dipping the electrode base material in a liquid or drying by heat as described above, the flatness after cleaning processing of the chips is not impaired, and the electrode base material is incorporated into a fuel cell as a high quality electrode base material. I can do it. Further, since the chips separated from the electrode base material can be collected by a filter and easily taken out and processed, the trouble and cost of processing and separating the washing waste liquid as in the conventional example can be saved. In addition, as in the conventional example, a long processing time of immersing in a cleaning liquid, applying ultrasonic vibration, and drying in a drying oven can be greatly reduced, and the working efficiency can be increased.
第1図はこの発明になる燃料電池の電極基材に切削加工
中に発生する切粉を除去する清掃装置の配置図、第2図
は従来例になる超音波槽を使用した清掃器の断面図、第
3図は第2図に示した装置で電極基材を清掃したあと乾
燥させる従来例になる乾燥炉の断面図である。 2:圧気フード、3:格子板、4:フィルター、5:真空ポン
プ、6:吸引フード、7:ガスケット、8:圧気取入口、9:器
台、10:第1の風洞、11:第2の風洞、21:排気口。FIG. 1 is a layout view of a cleaning device for removing chips generated during cutting of an electrode substrate of a fuel cell according to the present invention, and FIG. 2 is a cross-sectional view of a conventional cleaner using an ultrasonic bath. FIG. 3 is a cross-sectional view of a conventional drying oven that cleans and dries the electrode substrate by the apparatus shown in FIG. 2: Compressed hood, 3: Lattice plate, 4: Filter, 5: Vacuum pump, 6: Suction hood, 7: Gasket, 8: Compressed air intake, 9: Basin, 10: First wind tunnel, 11: Second Wind tunnel, 21: exhaust vent.
Claims (1)
多孔質のカーボン板よりなる燃料電池用電極基材の清掃
装置であって、固定器台に取りつけられその上面側に電
極基材を載置する格子板と、この格子板に電極基材が載
置されたときこの電極基材の上面にガスケットを介して
取り付けられる圧気取入口を有する圧気フードと、前記
格子板の下面に設置された吸引フードと、この吸引フー
ドに接続された第1の風洞と、この第1の風洞とフィル
ターを介して接続された第2の風洞と、この第2の風洞
に接続された排気口を有する真空ポンプとを備えたこと
を特徴とする燃料電池用電極基材の清掃装置。An apparatus for cleaning an electrode base material for a fuel cell, comprising a porous carbon plate having a groove formed on one side thereof by a cutting process, wherein the electrode base material is mounted on a fixing device base and has an electrode base material on an upper surface thereof. A grid plate to be mounted, a compressed air hood having a compressed air inlet attached via a gasket to an upper surface of the electrode base material when the electrode base material is mounted on the grid plate, and a pressure hood installed on the lower surface of the grid plate. A suction hood, a first wind tunnel connected to the suction hood, a second wind tunnel connected to the first wind tunnel via a filter, and an exhaust port connected to the second wind tunnel. An apparatus for cleaning an electrode substrate for a fuel cell, comprising: a vacuum pump.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1134405A JP2734632B2 (en) | 1989-05-26 | 1989-05-26 | Cleaning device for electrode substrate for fuel cell |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP1134405A JP2734632B2 (en) | 1989-05-26 | 1989-05-26 | Cleaning device for electrode substrate for fuel cell |
Publications (2)
Publication Number | Publication Date |
---|---|
JPH02312158A JPH02312158A (en) | 1990-12-27 |
JP2734632B2 true JP2734632B2 (en) | 1998-04-02 |
Family
ID=15127618
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP1134405A Expired - Lifetime JP2734632B2 (en) | 1989-05-26 | 1989-05-26 | Cleaning device for electrode substrate for fuel cell |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2734632B2 (en) |
Families Citing this family (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2002346488A (en) * | 2001-05-22 | 2002-12-03 | Tokai Carbon Co Ltd | Washing method and equipment therefor for pores of porous carbon plate |
JP5106808B2 (en) * | 2006-07-31 | 2012-12-26 | 三菱レイヨン株式会社 | Porous carbon electrode substrate and polymer electrolyte fuel cell using the same |
JP5531389B2 (en) * | 2008-09-22 | 2014-06-25 | 東レ株式会社 | Method for producing porous carbon sheet |
-
1989
- 1989-05-26 JP JP1134405A patent/JP2734632B2/en not_active Expired - Lifetime
Also Published As
Publication number | Publication date |
---|---|
JPH02312158A (en) | 1990-12-27 |
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