JPH07240218A - Gas separator for fuel cell - Google Patents

Gas separator for fuel cell

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Publication number
JPH07240218A
JPH07240218A JP6029217A JP2921794A JPH07240218A JP H07240218 A JPH07240218 A JP H07240218A JP 6029217 A JP6029217 A JP 6029217A JP 2921794 A JP2921794 A JP 2921794A JP H07240218 A JPH07240218 A JP H07240218A
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JP
Japan
Prior art keywords
fuel gas
header
gas
plate
fuel
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.)
Withdrawn
Application number
JP6029217A
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Japanese (ja)
Inventor
Tatsuo Kahata
Osao Kudome
Toshihiro Tani
長生 久留
達雄 加幡
俊宏 谷
Original Assignee
Mitsubishi Heavy Ind Ltd
三菱重工業株式会社
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Application filed by Mitsubishi Heavy Ind Ltd, 三菱重工業株式会社 filed Critical Mitsubishi Heavy Ind Ltd
Priority to JP6029217A priority Critical patent/JPH07240218A/en
Publication of JPH07240218A publication Critical patent/JPH07240218A/en
Application status is Withdrawn legal-status Critical

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    • YGENERAL 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
    • Y02TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02EREDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E60/00Enabling technologies or technologies with a potential or indirect contribution to GHG emissions mitigation
    • Y02E60/50Fuel cells

Abstract

PURPOSE: To improve the power generating characteristic by determining a header groove shape so as to make a gas flow evenly in a large number of supplying grooves to supply a gas to an electrode.
CONSTITUTION: A fuel gas supplying plate 2 has a large number of fuel gas supplying grooves 5. A fuel gas header plate 24 consists of a fuel gas supplying header 4 and a fuel gas discharging header 6. For example, the fuel gas supplying plate 2, the fueld gas header plate 24, a shielding plate 25 are laminated and installed in this order in a fuel electrode. As a result, a gas flow route which successively communicates a fuel gas supplying hole 3, the fuel gas supplying header 4, the fuel gas supplying groove 5, the fuel gas discharging header 6, and a fuel gas discharging hole 7, and a fuel gas flows in the route and is supplied to the fuel electrode. In order to equally distribute a fuel gas to each fuel gas supplying groove 5, flow route branches of the fuel gas supplying header 4 and the fuel gas discharging header 6 are so composed as to form so-called tournament shape and flow resistance of each flow route is thus made to be same.
COPYRIGHT: (C)1995,JPO

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、電池の発電特性の向上を図った燃料電池用セパレータに関する。 The present invention relates to a fuel cell separator with improved power generation characteristics of the battery.

【0002】 [0002]

【従来の技術】従来の燃料電池用ガスセパレータの分解図を示す図6により説明する。 BACKGROUND ART will be described with reference to FIG. 6 showing an exploded view of a gas separator conventional fuel cell. 図6のガスセパレータは3枚のプレート、即ち燃料ガス供給板2、冷却水板15 Gas separator three plates of Figure 6, i.e. the fuel gas supply plate 2, the cooling water plate 15
及び酸化剤ガス供給板8より成り、他のガスセパレータを複数セット上下に配し、その間にセルを挟んでボルト、ナットで締めて燃料電池が構成される。 And consists oxidant gas supply plate 8, arranged another gas separator into a plurality sets vertically, bolts, fuel cell tighten nut configured to sandwich the cell therebetween.

【0003】燃料電池用ガスセパレータ1は上記のように3枚のプレートより成るが、各プート共通に、燃料ガス供給孔3、燃料ガス排出孔7、酸化剤ガス供給孔9、 [0003] Fuel cell gas separator 1 consists of three plates, as described above, each boot common, the fuel gas supply hole 3, a fuel gas discharge hole 7, the oxidant gas supply holes 9,
酸化剤ガス排出孔13、加湿冷却水供給孔16及び加湿冷却水排出孔20が各々設けられている。 Oxygen-containing gas outlets 13, the humidification cooling water supply holes 16 and the humidifying cooling water discharge hole 20 are provided, respectively.

【0004】ここで、燃料ガス供給板2においては、燃料ガス供給孔3から入った燃料ガスは、裏面に設けた燃料ガス供給ヘッダ4を通ってプレートの表面側に設けた燃料ガス供給溝5に入るようになっている。 [0004] Here, in the fuel gas supply plate 2, the fuel gas entering the fuel gas supply hole 3, the fuel gas supply grooves 5 provided through the fuel gas supply header 4 provided on the back surface on the surface side of the plate which is to enter into. これは、該燃料ガス供給ヘッダ4と燃料ガス供給溝5との重なった部分が連通している為であるが、酸化剤ガス、加湿冷却水の場合も同様に作られている。 This is overlapped portion of the fuel gas supply header 4 and the fuel gas supply groove 5 is because in communication, are made in the same case of the oxidizing gas, humidifying cooling water. 又、燃料ガス供給溝5 Further, the fuel gas supply grooves 5
からの余剰燃料ガスは裏面に設けた燃料ガス排出ヘッダ6を通じて燃料ガス排出孔7から排出される。 Excess fuel gas from being discharged from the fuel gas outlets 7 through the fuel gas discharge header 6 provided on the back surface.

【0005】上記冷却水板15については、冷却水供給孔16より冷却水供給ヘッダ17に入った冷却水は燃料ガス供給板2の裏面に設けた冷却水供給ヘッダ17から冷却水供給溝18を通じてセパレータを冷却する構造となっている。 [0005] For the cooling water plate 15, through the cooling water supply groove 18 from the cooling water supply containing cooling water to the cooling water supply header 17 from the holes 16 the fuel gas supply plate 2 of the cooling water supply header 17 which is provided on the back surface It has a structure to cool the separator. 排出についても同様に加湿冷却水排出ヘッダ21より加湿冷却水排出孔20に連なっている。 Is continuous humidification cooling water discharge hole 20 from the humidifying cooling water discharge header 21 Similarly for the discharge.

【0006】最下部の酸化剤ガス供給板8では、酸化剤ガス供給孔9より入った酸化剤ガスは酸化剤ガス供給ヘッダ10を通じて供給板8の裏面に設けた酸化剤ガス供給溝11にヘッダ10との交点で連なり、酸化剤ガス供給板8の下にセットされるセルに溝11より接触し、余剰分は酸化剤ガス供給溝11より酸化剤ガス排出ヘッダ12に出て酸化剤ガス排出孔13に至るようになっている。 [0006] In the bottom of the oxidant gas supply plate 8, the header to the oxidizing gas supply groove 11 provided on the rear surface of the supply plate 8 oxidizing gas containing from oxidizing gas supply hole 9 through the oxidizing gas supply header 10 succession at the intersection of the 10, contacts the groove 11 in the cell is set below the oxidant gas supply plate 8, the surplus oxidizing gas discharging out the oxidizing gas discharge header 12 from oxidizing gas supply groove 11 so that the it reaches the hole 13.

【0007】 [0007]

【発明が解決しようとする課題】このような従来の燃料電池用ガスセパレータ1の問題点として、燃料ガス、酸化剤ガス、或いは冷却水等のセルに対する補給が均等に行われず偏りが有るため、燃料電池の発電性能の向上面で一つのネックとなっている点が挙げられる。 As INVENTION Problem to be Solved] problems of the conventional fuel cell gas separator 1, the fuel gas, oxidant gas, or because the bias supply is not performed evenly for the cells of the cooling water or the like is present, It includes that has become one of the neck in improving surface of the power generation performance of the fuel cell.

【0008】又、燃料電池のセル(表面)に対する必要補給物資を膜面に極力、均等に配するという問題に対して、図6に示した様な従来の分配方法、即ち隅部にある供給孔から同一断面のヘッダに連なり、そのヘッダから供給溝に端から逐次分岐していく方法では、対応が困難でありアンバランスとなる事は避けがたい。 [0008] Also, as much as possible the need replenishing supplies the fuel cell of the cell (surface) to the film surface, to the problem of disposing evenly, conventional methods of distribution such as shown in FIG. 6, namely feed in the corner portion contiguous to the same cross-section of the header from the hole, the method will sequentially branched from the end to the feed channel from the header, inevitable is that the correspondence is difficult unbalanced.

【0009】図6で燃料ガス供給板2の燃料ガス供給溝5でαで示す部分の供給溝に流れる燃料ガス量と、βで示す部分に流れる燃料ガス量との間には大きな差があり、アンバランスとなる。 [0009] There is a large difference between the in FIG. 6 and the fuel gas amount flowing through the feed channel of the part indicated by α in the fuel gas supply groove 5 of the fuel gas supply plate 2, the amount of fuel gas flowing in the portion indicated by β , it becomes unbalanced. このアンバランスは、供給溝の全断面積がヘッダ断面積の2倍以上であれば非常に大きくなるとされており、現実においてもこの面積比は2 This imbalance, the total cross-sectional area of ​​the supply groove are a very large if more than two times the header sectional area, even in the real area ratio is 2
倍以上となっている。 It has more than doubled. そして、この事は排出側でも同じであり、酸化剤ガス、加湿冷却水に付いても同様な問題がある。 Then, This is the same on the discharge side, the oxidant gas, there is a similar problem with the humidifying cooling water.

【0010】このため、従来では、図7に示すように、 [0010] Therefore, conventionally, as shown in FIG. 7,
燃料ガス供給ヘッダ4のヘッダ形状を先細りにしたアンバランスの解消を計った例もあるが、若干の改善に止まっており、更なる改良が望まれている。 There are examples as measured to eliminate the imbalance that the headers shape of the fuel gas supply header 4 to the tapered but is stopped in some improvement, further improvement is desired.

【0011】本発明はこのような問題点、各補給物資の供給溝での流量のアンバランスを解消し、電池の発電特性の向上を図った燃料電池用ガスセパレータを提供することを目的とする。 [0011] The present invention is such a problem, to eliminate the imbalance in the flow rate of the feed groove of the replenishing supplies, and an object thereof is to provide a fuel cell gas separator with improved power generation characteristics of the battery .

【0012】 [0012]

【課題を解決するための手段】前記目的を達成する本発明に係るセパレータの構成は、燃料電池用ガスセパレータにおいて、燃料電池(セル)に燃料ガス、酸化剤ガス等のガス類或いは必要があれば冷却水等を供給する多数の溝からなる各供給溝とそれらの供給孔の間の各供給ヘッダ流路とを、供給溝のどの溝に対しても供給孔からの長さ及び屈折数がほぼ等しくなるように、複数の分岐点と屈曲とにより形成し、又、必要があれば上記の各種溝から排出孔に至る流路についても同様に形成していることを特徴とする。 Means for Solving the Problems The configuration of a separator according to the present invention for achieving the above object, in the gas separator for fuel cell, the fuel gas to the fuel cell (cell), a gas such as oxygen-containing gas or require any each feed channel comprising a plurality of grooves supplying situ cooling water or the like and the respective supply header flow path between these supply holes, length and number of refraction from the supply hole to any groove of the supply groove to be substantially equal, formed by a bent and a plurality of branch points, also characterized in that it is formed in the same manner for the flow path to the discharge hole from above various grooves if necessary.

【0013】即ち、燃料電池(セル)に燃料ガス、酸化剤ガス等のガス類或いは必要があれば加湿冷却水等を供給する多数の溝からなる各供給溝とそれらの供給孔の各供給ヘッダ流路とを、供給溝のどの溝に対しても供給孔からの長さ及び屈折数がほぼ等しくなるように複数の分岐点と屈曲により形成し、又、この事は上記の各種溝から排出孔に至る流路についても必要があれば同様に形成するようにしたものである。 [0013] That is, the fuel gas to the fuel cell (cell), the supply grooves and the supply header of those feed holes comprising a plurality of grooves supplying fogging water or the like if gases or needs, such as the oxidizing gas a flow path, also formed by bending a plurality of branch points such that the length and the number of refraction are approximately equal from the supply hole to any groove of the feed channel, also this is discharged from the various grooves is obtained so as to form in the same manner if necessary also the flow path to the hole.

【0014】 [0014]

【作用】このような手段によれば、その作用は次にように表れる。 SUMMARY OF] According to such means, the action then as appears. 燃料電池セル面に補給する燃料ガス、酸化剤ガス類或いは必要があれば加湿冷却水等の各供給孔から供給溝までの各供給ヘッダ流路が供給溝のどの溝に対してもその長さ、屈折数をほぼ等しくすることで、流れの抵抗係数を揃えることとなり、この結果、供給孔、排出孔の位置如何に依らず供給溝を通じてセル面全体にほぼ均等に流体が補給されれることとなる。 Fuel gas to be supplied to the fuel cell surfaces, even its length to any groove of the supply header passage supply groove from each of the supply holes, such as fogging water if any oxidant gases or necessary until the supply groove , by approximately equal number of refraction, will to align the drag coefficient of the flow, as a result, and that the supply hole, substantially equally fluid to the entire cell surface through the supply grooves irrespective of the position whether the discharge hole is supplemented Become. そして、この結果として、燃料電池の稼働率が上がり発電効果が向上することになる。 Then, as a result, to improve the power generation effect fuel cell operating rate is increased.

【0015】 [0015]

【実施例】以下、本発明の好適な実施例について図面を参照にして具体的に説明する。 EXAMPLES The following specifically described with reference to the accompanying drawings preferred embodiments of the present invention.

【0016】(実施例1)図1は本発明の第1実施例を示す燃料電池用ガスセパレータの斜視図である。 [0016] (Embodiment 1) FIG. 1 is a perspective view of a gas separator for fuel cell according to a first embodiment of the present invention. 図2はその構成分解図であり、5枚のプレート、即ち最上部に燃料ガス供給板2、その下に燃料ガスヘッダ板24、遮断板25、酸化剤ガスヘッダ板26、の順で最下部に酸化剤ガス供給板8の5枚を配して構成される燃料電池用ガスセパレータ1の一単位を示すものである。 Figure 2 is its construction exploded view, five plates, i.e. a fuel gas supply plate 2 at the top, the fuel gas header plate 24 below it, the blocking plate 25, oxide at the bottom in the order of the oxidizing agent gas header plate 26, It shows one unit of the fuel cell gas separator 1 arranged five-containing gas supply plate 8.

【0017】単位ガスセパレータ1の上下面には燃料電池・セルが配され、この構成で上下に複数段を重ね、ボルト、ナットで締結したものが単位燃料電池である。 [0017] The upper and lower surfaces of the unit gas separator 1 is arranged, the fuel cell cells, repeated several stages up and down in this configuration, the bolt, it is the unit fuel cell that fastened with a nut.

【0018】図2に示すように、燃料ガス供給板2は、 As shown in FIG. 2, the fuel gas supply plate 2,
他の4枚のプレートと同様に、各プレートの端部近傍に4つの孔を設けており、燃料電池の補給物資の供給、排出の母管としている。 Like other four plates, and provided with four holes near the end of each plate, the supply of replenishing supplies of the fuel cell, and a base pipe of the discharge. この4つの孔は、燃料ガス供給孔3、燃料ガス排出孔7、酸化剤ガス供給孔9及び酸化剤ガス排出孔13である。 The four holes, the fuel gas supply hole 3, a fuel gas discharge hole 7, is an oxidant gas supply hole 9 and the oxidizing gas discharge hole 13.

【0019】そして、燃料ガス供給板2の上面側のセルに対して、燃料ガスを供給する複数の細溝からなる燃料ガス供給溝5を備えており、各溝5は全長にわたりプレートを打ち抜いて製作している。 [0019] Then, the upper surface side of the cell of the fuel gas supply plate 2 includes a fuel gas supply groove 5 consisting of a plurality of narrow grooves for supplying fuel gas, each of the grooves 5 by punching a plate over the entire length It has produced.

【0020】また、上面に燃料ガス供給板2、下面に遮断板25を有する燃料ガスヘッダ板24はそれぞれ燃料ガス供給孔3及び燃料ガス排出孔7と各々接続している燃料ガス供給ヘッダ4と燃料ガス排出ヘッダ6とを備えており、通路は打ち抜いて作られている。 Further, the fuel gas supply plate 2 to the upper surface, a fuel gas supply header 4 fuel gas header plate 24 having a blocking plate 25 to the lower surface connecting each fuel gas supply hole 3 and the fuel gas discharge hole 7, respectively and the fuel and a gas discharge header 6, passages are made by punching.

【0021】最下部の酸化剤ガス供給板8は該板の下面のセルに対して酸化剤ガスを供給する複数の溝からなる酸化剤ガス供給溝11を備えており、各溝11は全長にわたりプレートを打ち抜いて製作している。 The oxidant gas supply plate 8 of the bottom is provided with an oxidant gas supply groove 11 comprising a plurality of grooves for supplying an oxygen-containing gas to the lower surface of the cells of the plate over each groove 11 is the full-length It has produced by punching the plate.

【0022】また、上面に遮断板25、下面に酸化剤ガス供給板8を配する酸化剤ガスヘッダ板26は、それぞれ酸化剤ガス供給孔9、酸化剤ガス排出孔13と接続している酸化剤ガス供給ヘッダ10と酸化剤ガス排出ヘッダ12を備え各通路は同様に打ち抜いて作られる。 Further, shielding plate 25 on the upper surface, the oxidant gas header plate 26 to arrange the oxidizing agent gas supply plate 8 to the lower surface, respectively oxidant gas supply holes 9, oxidizing agents in connection with the oxygen-containing gas outlets 13 each passageway includes an oxidant gas discharge header 12 to a gas supply header 10 is made by punching in the same manner.

【0023】本実施例では上記の燃料ガスヘッダ板24 [0023] In this embodiment the above fuel gas header plate 24
及び酸化剤ガスヘッダ板26の2枚のプレートに設ける供給、排出の各ヘッダの流路が分岐、合流する個所で等量で分岐、合流するように、例えば図3に示すような分岐後の流れaの流量が異なる(a 1 ≠a 2 ) ようにはせず、 And two plates supply provided in the flow path of each header of the discharge branch, branches in equal amounts at the point of confluence, as merge, for example flow after branching as shown in FIG. 3 of the oxidant gas header plate 26 the flow rate of a different (a 1 ≠ a 2) as without the
図4に示すように、第1分岐点14での分岐後の流れ As shown in FIG. 4, the flow after branching at the first branch point 14
a 1 , a 2が分岐前の流れaと較べて、それらの流量が2等分されても相等しくなる(a 1 =a 2 ) ようにして( 図 4 a 1, a 2 are compared with the flow a pre-branch, their flow rate is also equal to one another are bisected (a 1 = a 2) manner (FIG. 4
(A),(B) 参照) 、所謂トーナメント型の分岐、合流を数回繰り返すようにしている( 図 4(C) 参照) 。 (A), (B) refer), the so-called tournament type branch, so that repeated several times confluence reference (FIG. 4 (C)). なお、本実施例では、所謂トーナメント型の分岐、合流を数回繰り返すようにして流れを等しくするようにしたが、本発明はこれのに限定されず、本発明の効果を奏するような形状、例えばループ状等の形状としてもよい。 In this embodiment, a so-called tournament type branching, but so as to equalize the flow to repeat several times confluence, the present invention is not limited to this shape as an effect of the present invention, for example it may have a shape of a loop shape.

【0024】以上の構成に於いて、本実施例の燃料電池用ガスセパレータ1は燃料電池セル面に燃料ガスや酸化剤ガスを供給し、或いはそれらの余剰分を排出する各供給溝の多くの溝に対して各供給孔からの、もしくは各排出孔への各ヘッダ流路の流体抵抗係数がほぼ揃うことで、各供給溝の溝間の流量差が殆ど無くなり、燃料電池のセル面にほぼ均等に流体が補給されることとなる。 [0024] In the above configuration, the fuel cell gas separator 1 of the present embodiment is a fuel gas and an oxidant gas supplied to the fuel cell surfaces, or a number of the feed channel for discharging the surplus thereof from the supply hole to the grooves, or the fluid resistance coefficient of each header channel to each discharge hole that substantially aligned, no flow rate difference between the grooves of each supply groove most, almost cell surface of the fuel cell evenly so that the fluid is replenished. この結果、燃料電池の発電性能が向上することとなる。 As a result, an improved power generation performance of the fuel cell.

【0025】(実施例2)図5は本発明の第2実施例である。 [0025] (Embodiment 2) FIG. 5 is a second embodiment of the present invention. 実施例1の燃料ガスは、冷却済のガスであった為、ガスセパレータ1としては加湿関係要素は不要であったが、図5には燃料ガスが無処理の場合のガスセパレータ1を示しており、加湿冷却水の供給、排出関係が追加されている。 The fuel gas of the first embodiment, since there was a chilled gas, but moistening relationship element as a gas separator 1 was not required, FIG. 5 shows a gas separator 1 when fuel gas is untreated cage, the supply of the humidifying cooling water discharge relationships are added.

【0026】なお、ガスセパレータ1は前述した実施例1と同様に、5枚のプレートよりなり、最上部の上面にセルが設けられること、最下部の下面に別のセルがあること等は変わりは無い。 [0026] The gas separator 1 as in Example 1 described above, consists of five plates, the cell is provided on the upper surface of the top, it is such that there is another cell to the lower surface of the bottom instead It is not.

【0027】遮断板25、酸化剤ガスヘッダ板26及び酸化剤ガス供給板8等については各プレート共通の供給・排出母管として、加湿冷却水供給孔16、燃料ガス・ The blocking plate 25, as each plate common supply and discharge header pipe of the like oxidizing agent gas header plate 26 and the oxidizing gas supply plate 8, the humidification cooling water supply holes 16, the fuel gas
加湿冷却水排出孔23が追加されたのみである。 Humidifying cooling water discharge hole 23 is only added.

【0028】一方、図1に示した上部の燃料ガス供給板2、燃料ガスヘッダ板24についてはそれぞれ、燃料ガス供給溝5、加湿冷却水供給溝29及び燃料ガス・加湿冷却水ヘッダ22を追加した燃料ガス・加湿冷却水板1 On the other hand, the upper portion of the fuel gas supply plate 2 shown in FIG. 1, respectively for the fuel gas header plate 24, the fuel gas supply grooves 5, was added to the humidification cooling water supply groove 29 and the fuel gas humidification cooling water header 22 the fuel gas humidifier cooling water plate 1
9及び燃料ガス・加湿冷却水ヘッダ板27と変更している。 It is changed 9 and the fuel gas humidification cooling water header plate 27. 燃料ガス・加湿冷却水ヘッダ板27は二つの流体の供給と排出とを行うようになっており、供給側においては燃料ガスと加湿冷却水とは溝も含めて独立に入るようになっており、排出側は燃料ガス・加湿冷却水ヘッダ2 The fuel gas humidification cooling water header plate 27 is adapted to perform the discharge and the supply of two fluids, the supply side to the fuel gas and the humidifying cooling water being adapted to enter independently, including grooves , the discharge-side fuel gas humidification cooling water header 2
2が共通で一本化されている。 2 is one of a common.

【0029】そして、供給孔から供給溝までのヘッダ4 [0029] Then, the header 4 from the supply hole to supply grooves
の流路、又、供給溝から排出孔までのヘッダ22の流路は、実施例1の場合と同様に、図4に示すようなトーナメント型の配列となっている。 Flow path, also the channel of the header 22 from the supply groove to the discharge hole, as in Example 1, and has a sequence of tournament type as shown in FIG.

【0030】なお、燃料ガス供給板2の交互に設ける燃料ガス供給溝5と加湿冷却水供給溝18の流路はほとんど打ち抜きであるが、図5中、符号γで図示する幅の裏面はめくら面になっている。 [0030] Incidentally, although the flow path of the fuel gas supply groove 5 provided in the alternating fuel gas supply plate 2 humidified cooling water supply groove 18 is almost punching, in FIG. 5, the rear surface of the width indicated by reference numeral γ is blind It has become the surface.

【0031】以上の構成の本実施例のガスセパレータ1 The gas separator 1 of the present embodiment having the above structure
は加湿冷却水が加わった場合のものであるが、実施例1 While those in the case where the humidifying cooling water is applied, Example 1
と同じく各ヘッダ流路の流体抵抗係数をほぼ等しくしているため、各供給溝を通じてセル面全体に均等に流体が補給されることとなり、その及ぼす効果も実施例1と同様に、発電性能の向上が確認された。 If because also are substantially equal to the fluid resistance coefficient of each header passages, becomes the fluid evenly to the entire cell surface through the feed channel is replenished, in the same manner as also in Example 1 that exerts effects of power generation performance improvement has been confirmed.

【0032】 [0032]

【発明の効果】以上、実施例と共に説明したように、本発明の各供給孔から供給溝までの各供給ヘッダ流路、各供給溝から排出孔までの各排出ヘッダ流路が各供給溝の多くの溝に対してほぼ同一の流体抵抗係数となるように設けられる結果、燃料電池セル全面に均等に燃料ガス、 Effect of the Invention] As has been described with examples, the supply header flow path from the supply hole to supply grooves of the present invention, the discharge header flow path from the supply groove to the discharge hole of each supply groove results provided to be substantially the same fluid resistance coefficient for many grooves, the fuel cell the entire surface evenly fuel gas,
酸化剤ガス、必要とあれば加湿冷却水等が補給され、燃料電池の発電性能が向上する効果を奏する。 Oxidizing gas, fogging water or the like, if necessary supplemented, the effect of improving the power generation performance of the fuel cell.

【図面の簡単な説明】 BRIEF DESCRIPTION OF THE DRAWINGS

【図1】本発明の第1実施例に係るガスセパレータの斜視図である。 1 is a perspective view of a gas separator according to the first embodiment of the present invention.

【図2】本発明の第1実施例に係るガスセパレータの分解図である。 2 is an exploded view of a gas separator according to the first embodiment of the present invention.

【図3】従来のガスセパレータのガス流路分岐での流れ方向および流量を示す模式図である。 3 is a schematic diagram showing the flow direction and flow rate of a gas flow path branching conventional gas separator.

【図4】本発明の改善された分岐における流れ方向および流量を示す模式図である。 4 is a schematic diagram showing the flow direction and flow rate in the improved branches present invention.

【図5】本発明の第2実施例に係るガスセパレータの分解図である。 5 is an exploded view of a gas separator according to a second embodiment of the present invention.

【図6】従来のガスセパレータの分解図である。 6 is an exploded view of a conventional gas separator.

【図7】従来のガスセパレータのガス流路の改良を示す図である。 7 is a diagram showing an improvement of the gas flow path of a conventional gas separator.

【符号の説明】 DESCRIPTION OF SYMBOLS

1 ガスセパレータ 2 燃料ガス供給板 3 燃料ガス供給孔 4 燃料ガス供給ヘッダ 5 燃料ガス供給溝 6 燃料ガス排出ヘッダ 7 燃料ガス排出孔 8 酸化剤ガス供給板 9 酸化剤ガス供給孔 10 酸化剤ガス供給ヘッダ 11 酸化剤ガス供給溝 12 酸化剤ガス排出ヘッダ 13 酸化剤ガス排出孔 14 第1分岐点 15 冷却水板 16 加湿冷却水供給孔 17 冷却水供給ヘッダ 18 冷却水供給溝 19 燃料ガス・加湿冷却水板 20 加湿冷却水排出孔 21 加湿冷却水排出ヘッダ 22 燃料ガス・加湿冷却水排出ヘッダ 23 燃料ガス・加湿冷却水排出孔 24 燃料ガスヘッダ板 25 遮断板 26 酸化剤ガスヘッダ板 27 燃料ガス・加湿冷却水ヘッダ板 28 加湿冷却水供給ヘッダ 29 加湿冷却水供給溝 1 gas separator 2 fuel gas supply plate 3 fuel gas supply hole 4 fuel gas supply header 5 fuel gas supply groove 6 fuel gas discharge header 7 fuel gas outlets 8 oxidant gas supply plate 9 oxidant gas supply hole 10 oxidizing gas supply header 11 oxidizing gas supply groove 12 oxidizing gas discharge header 13 oxidizing gas discharge hole 14 first branch point 15 the cooling water plate 16 humidifying cooling water supply holes 17 the coolant supply header 18 the cooling water supply groove 19 the fuel gas humidification cooling water plate 20 humidifying cooling water discharge hole 21 humidifying cooling water discharge header 22 fuel gas humidification cooling water discharge header 23 fuel gas humidification cooling water discharge hole 24 fuel gas header plate 25 blocking plate 26 oxidant gas header plate 27 the fuel gas humidification cooling water header plate 28 humidifying cooling water supply header 29 humidifying cooling water supply groove

Claims (1)

    【特許請求の範囲】 [The claims]
  1. 【請求項1】 燃料電池用ガスセパレータにおいて、燃料電池に燃料ガス、酸化剤ガス等のガス類或いは必要があれば冷却水等を供給する多数の溝からなる各供給溝とそれらの供給孔の間の各供給ヘッダ流路とを、供給溝のどの溝に対しても供給孔からの長さ及び屈折数がほぼ等しくなるように複数の分岐点と屈曲とにより形成し、 1. A gas separator for fuel cell, the fuel gas to the fuel cell, an oxidant gas such as gases or required for each feed channel and their feed holes comprising a plurality of grooves supplying cooling water or the like, if and each supply header flow path between, also formed by a plurality of branch points such that the length and the number of refraction are approximately equal from the supply hole bending and to any groove of the feed channel,
    又、必要に応じて上記の各種溝から排出孔に至る流路についても同様に形成していることを特徴とする燃料電池用ガスセパレータ。 The fuel cell gas separator, characterized in that it is formed in the same manner for the flow path to the discharge hole from above various grooves as required.
JP6029217A 1994-02-28 1994-02-28 Gas separator for fuel cell Withdrawn JPH07240218A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP6029217A JPH07240218A (en) 1994-02-28 1994-02-28 Gas separator for fuel cell

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP6029217A JPH07240218A (en) 1994-02-28 1994-02-28 Gas separator for fuel cell

Publications (1)

Publication Number Publication Date
JPH07240218A true JPH07240218A (en) 1995-09-12

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Family Applications (1)

Application Number Title Priority Date Filing Date
JP6029217A Withdrawn JPH07240218A (en) 1994-02-28 1994-02-28 Gas separator for fuel cell

Country Status (1)

Country Link
JP (1) JPH07240218A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000019555A1 (en) * 1998-09-25 2000-04-06 Matsushita Electric Industrial Co., Ltd. Fuel cell stack with separator of a laminate structure
WO2002093668A1 (en) * 2001-05-15 2002-11-21 Hydrogenics Corporation Flow field plate for a fuel cell and fuel cell assembly incorporating the flow field plate
US6878477B2 (en) 2001-05-15 2005-04-12 Hydrogenics Corporation Fuel cell flow field plate
US7353085B2 (en) 2003-09-22 2008-04-01 Hydrogenics Corporation Electrolyzer cell stack system
JP2010517210A (en) * 2007-01-16 2010-05-20 プリマス パワー コーポレイション The electrochemical energy cell system
US8419910B2 (en) 2003-09-22 2013-04-16 Hydrogenics Corporation Electrolyzer cell stack system

Cited By (11)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2000019555A1 (en) * 1998-09-25 2000-04-06 Matsushita Electric Industrial Co., Ltd. Fuel cell stack with separator of a laminate structure
US6689504B1 (en) 1998-09-25 2004-02-10 Matsushita Electric Industrial Co., Ltd. Fuel cell stack with separator of a laminate structure
WO2002093668A1 (en) * 2001-05-15 2002-11-21 Hydrogenics Corporation Flow field plate for a fuel cell and fuel cell assembly incorporating the flow field plate
US6878477B2 (en) 2001-05-15 2005-04-12 Hydrogenics Corporation Fuel cell flow field plate
US7353085B2 (en) 2003-09-22 2008-04-01 Hydrogenics Corporation Electrolyzer cell stack system
US8419910B2 (en) 2003-09-22 2013-04-16 Hydrogenics Corporation Electrolyzer cell stack system
US9580825B2 (en) 2003-09-22 2017-02-28 Hydrogenics Corporation Electrolyzer cell stack system
JP2010517210A (en) * 2007-01-16 2010-05-20 プリマス パワー コーポレイション The electrochemical energy cell system
US8415042B2 (en) 2007-01-16 2013-04-09 Primus Power Corporation Metal halogen electrochemical cell system
JP2014160661A (en) * 2007-01-16 2014-09-04 Primus Power Corp The electrochemical energy cell system
US8956745B2 (en) 2007-01-16 2015-02-17 Primus Power Corporation Metal halogen electrochemical cell system

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