JPH04144065A - Fuel cell - Google Patents
Fuel cellInfo
- Publication number
- JPH04144065A JPH04144065A JP2265707A JP26570790A JPH04144065A JP H04144065 A JPH04144065 A JP H04144065A JP 2265707 A JP2265707 A JP 2265707A JP 26570790 A JP26570790 A JP 26570790A JP H04144065 A JPH04144065 A JP H04144065A
- Authority
- JP
- Japan
- Prior art keywords
- pressure
- cathode
- anode
- exhaust pipe
- pressure chamber
- 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
- 239000000446 fuel Substances 0.000 title claims description 16
- 239000007788 liquid Substances 0.000 claims abstract description 38
- 239000003792 electrolyte Substances 0.000 claims abstract description 11
- 238000004891 communication Methods 0.000 claims abstract description 10
- 239000007800 oxidant agent Substances 0.000 claims description 2
- 239000007789 gas Substances 0.000 description 90
- CURLTUGMZLYLDI-UHFFFAOYSA-N Carbon dioxide Chemical compound O=C=O CURLTUGMZLYLDI-UHFFFAOYSA-N 0.000 description 12
- 238000007789 sealing Methods 0.000 description 11
- 230000001105 regulatory effect Effects 0.000 description 9
- 230000003197 catalytic effect Effects 0.000 description 7
- 229910002092 carbon dioxide Inorganic materials 0.000 description 6
- 239000001569 carbon dioxide Substances 0.000 description 6
- UFHFLCQGNIYNRP-UHFFFAOYSA-N Hydrogen Chemical compound [H][H] UFHFLCQGNIYNRP-UHFFFAOYSA-N 0.000 description 4
- QVGXLLKOCUKJST-UHFFFAOYSA-N atomic oxygen Chemical compound [O] QVGXLLKOCUKJST-UHFFFAOYSA-N 0.000 description 4
- 239000001257 hydrogen Substances 0.000 description 4
- 229910052739 hydrogen Inorganic materials 0.000 description 4
- 239000001301 oxygen Substances 0.000 description 4
- 229910052760 oxygen Inorganic materials 0.000 description 4
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 description 3
- OKKJLVBELUTLKV-UHFFFAOYSA-N Methanol Chemical compound OC OKKJLVBELUTLKV-UHFFFAOYSA-N 0.000 description 3
- 229910002091 carbon monoxide Inorganic materials 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 230000005611 electricity Effects 0.000 description 3
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 3
- 229910001868 water Inorganic materials 0.000 description 3
- BVKZGUZCCUSVTD-UHFFFAOYSA-L Carbonate Chemical compound [O-]C([O-])=O BVKZGUZCCUSVTD-UHFFFAOYSA-L 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000002737 fuel gas Substances 0.000 description 2
- 239000012528 membrane Substances 0.000 description 2
- VNWKTOKETHGBQD-UHFFFAOYSA-N methane Chemical compound C VNWKTOKETHGBQD-UHFFFAOYSA-N 0.000 description 2
- 230000001590 oxidative effect Effects 0.000 description 2
- IJGRMHOSHXDMSA-UHFFFAOYSA-N Atomic nitrogen Chemical compound N#N IJGRMHOSHXDMSA-UHFFFAOYSA-N 0.000 description 1
- 239000003034 coal gas Substances 0.000 description 1
- 229910001873 dinitrogen Inorganic materials 0.000 description 1
- 238000007599 discharging Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 239000003345 natural gas Substances 0.000 description 1
- 239000011148 porous material Substances 0.000 description 1
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
- H01M8/04104—Regulation of differential pressures
-
- 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
- H01M8/24—Grouping of fuel cells, e.g. stacking of fuel cells
- H01M8/2465—Details of groupings of fuel cells
- H01M8/247—Arrangements for tightening a stack, for accommodation of a stack in a tank or for assembling different tanks
-
- 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
- Life Sciences & Earth Sciences (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Sustainable Development (AREA)
- Sustainable Energy (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Electrochemistry (AREA)
- General Chemical & Material Sciences (AREA)
- Fuel Cell (AREA)
Abstract
Description
【発明の詳細な説明】 ［産業上の利用分野コ 本発明は、燃料電池に関するものである。[Detailed description of the invention] [Industrial application fields] The present invention relates to fuel cells.
［従来の技術］ 以下、従来の燃料電池を第３図を用いて説明する。[Conventional technology] Hereinafter, a conventional fuel cell will be explained using FIG. 3.
図中１は燃料電池本体であって、スタック２と、該スタ
ック２を一定圧力の窒素ガス中に封入するスタック容器
３とにより構成されている。In the figure, reference numeral 1 denotes a fuel cell main body, which is composed of a stack 2 and a stack container 3 that encloses the stack 2 in nitrogen gas at a constant pressure.
スタック２は溶融炭酸塩から成る電解質４の両面（第３
図では上下面）を多孔質材から成るアノード５（負極）
とカソード６（正極）で挟み、アノード５の膜電解質４
側にアノードガス通路７を形成し、且つ、カソード６の
膜電解質４側にカソードガス通路８を形成したものであ
る。The stack 2 has two sides of an electrolyte 4 (third
The anode 5 (negative electrode) made of porous material (upper and lower surfaces in the figure)
and the membrane electrolyte 4 of the anode 5 sandwiched between the cathode 6 (positive electrode) and the cathode 6 (positive electrode).
An anode gas passage 7 is formed on the side of the cathode 6, and a cathode gas passage 8 is formed on the membrane electrolyte 4 side of the cathode 6.
９はアノードガス通路７に石炭ガスや天然ガスやメタノ
ール等の水素や一酸化炭素を含むアノードガス１０（燃
料ガス）を供給するアノードガス供給管、１１はアノー
ドガス供給管９の途中に設けられた流量調節弁、１２は
アノードガス供給管９の流量を検出し流量調節弁１１を
調節する流量調節計である。9 is an anode gas supply pipe that supplies an anode gas 10 (fuel gas) containing hydrogen and carbon monoxide such as coal gas, natural gas, or methanol to the anode gas passage 7; 11 is provided in the middle of the anode gas supply pipe 9; The flow rate control valve 12 is a flow rate controller that detects the flow rate of the anode gas supply pipe 9 and adjusts the flow rate control valve 11.
１３はカソードガス通路８にカソードガス１４（酸素を
含む空気等のガスに二酸化炭素を加えた酸化剤ガス）を
供給するカソードガス供給管、１５はカソードガス供給
管１３の途中に設けられた流１調節弁、１６はカソード
ガス供給管１３の流量を検出し流量調節弁１５を調節す
る流量調節計、１７はカソード４；゛ス供給管１３の流
量調節弁１５とカソードガス通路８との間に設けられた
触媒燃焼器である。Reference numeral 13 indicates a cathode gas supply pipe that supplies cathode gas 14 (an oxidizing gas obtained by adding carbon dioxide to a gas such as air containing oxygen) to the cathode gas passage 8, and reference numeral 15 indicates a flow provided in the middle of the cathode gas supply pipe 13. 1 a control valve; 16 a flow rate regulator that detects the flow rate of the cathode gas supply pipe 13 and adjusts the flow control valve 15; 17 a cathode 4; between the flow control valve 15 of the cathode gas supply pipe 13 and the cathode gas passage 8; This is a catalytic combustor installed in the
１８はアノ−トガス通路７から排出されたアノードガス
１０を触媒燃焼器１７へ導くアノードガス排気管、１９
はアノードガス排気管工８の途中に設けられた圧力調節
弁、２０はスタック容器３内部の圧力とγノ＝−トガス
排気管１８の圧力とを検出すると共に、スタック容器３
内部の圧力とアノードガス排気管１８の圧力との差圧を
取り、該差圧かセロとなるよう圧力調節弁１９を調節す
る圧力調節計である。18 is an anode gas exhaust pipe that guides the anode gas 10 discharged from the anode gas passage 7 to the catalytic combustor 17; 19;
20 is a pressure regulating valve installed in the middle of the anode gas exhaust pipe 8;
This is a pressure regulator that measures the differential pressure between the internal pressure and the pressure of the anode gas exhaust pipe 18 and adjusts the pressure regulating valve 19 so that the differential pressure becomes zero.
２１はカソードガス通路８からカソードガスＪ４を排出
するカソードガス排気管、２２はカソードカス排気管２
１の途中に設けられた圧力調節弁、２３はスタック容器
３内部の圧力とカソードガス排気管２１の圧力を検出す
ると共に、スタック容器３内部の圧力とカソードカス排
気管２１の圧力との差圧を取り、該差圧かゼロとなるよ
う圧力調節弁２２を調節する圧力調節計、２４はカソー
ドガス排気管２１の圧力調節弁２２出側と触媒燃焼器１
７を接続するカン・−トガスリサイクル管、；シ５はカ
ソードガスリサイクル管２４の途中に設けられたカソー
ドガスリサイクルブロワである。21 is a cathode gas exhaust pipe for discharging the cathode gas J4 from the cathode gas passage 8; 22 is a cathode gas exhaust pipe 2;
A pressure regulating valve 23 provided in the middle of the stack container 3 detects the pressure inside the stack container 3 and the pressure in the cathode gas exhaust pipe 21, and detects the differential pressure between the pressure inside the stack container 3 and the pressure in the cathode gas exhaust pipe 21. 24 is a pressure regulator that adjusts the pressure regulating valve 22 so that the differential pressure becomes zero;
7 is a cathode gas recycle blower installed in the middle of the cathode gas recycle pipe 24;
発電を行なう場合には、アノードガス供給管９に流量調
節弁１１で流量を調節させつつアノードガス１０（水素
や一酸化炭素を含む燃料ガス）を供給し、同時に、カソ
ードガス供給管１３に流量調節弁１５で流量を調節させ
つつ酸素を含む空気等のガスをカソードガス１４として
（後述するように触媒燃焼器１７で二酸化炭素が加えら
れて酸化剤ガスとされる）を供給する。When generating electricity, the anode gas 10 (fuel gas containing hydrogen and carbon monoxide) is supplied to the anode gas supply pipe 9 while adjusting the flow rate with the flow control valve 11, and at the same time, the flow rate is adjusted to the cathode gas supply pipe 13. A gas such as air containing oxygen is supplied as the cathode gas 14 (as described later, carbon dioxide is added to the catalytic combustor 17 to form an oxidizing gas) while adjusting the flow rate using the regulating valve 15 .
すると、カソードガス１４は、触媒燃焼器１７を経由し
てスタック２のカソードガス通路８へ入り、ここでカソ
ード６（正極）から電子を受取ることによってカン−ド
ガス１４中の二酸化炭素と酸素が反応して炭酸イオンが
生成される。未反応のカソードガス１４はカソードガス
通路８からカソードガス排気管２１を通って外部へ排出
され、そのうちの一部かカソードガスリサイクルブロワ
２５によってカソードガスリサイクル管２４から触媒燃
焼器１７へと送られる。Then, the cathode gas 14 enters the cathode gas passage 8 of the stack 2 via the catalytic combustor 17, where carbon dioxide and oxygen in the cand gas 14 react by receiving electrons from the cathode 6 (positive electrode). carbonate ions are generated. Unreacted cathode gas 14 is discharged from the cathode gas passage 8 to the outside through the cathode gas exhaust pipe 21, and a portion of it is sent from the cathode gas recycle pipe 24 to the catalytic combustor 17 by the cathode gas recycle blower 25. .
そして、カン・−ドロ側で生成された炭酸イオンは電解
質４を７ノード５（負極）側へ移動し、アノード５でア
ノードガス供給管９からアノードガス通路７・＼通され
たアノードガス１０中の水素や一酸化炭素と反応して、
水と二酸化炭素と電子か生成される。このようにして電
気が発生され、同時に生成された水と二酸化炭素はアノ
ードガス通路７からアノードガス排気管１８を通って触
媒燃焼器１７−・送られる。Then, the carbonate ions generated on the can-doro side move the electrolyte 4 to the 7 node 5 (negative electrode) side, and enter the anode gas 10 passed from the anode gas supply pipe 9 to the anode gas passage 7 at the anode 5. reacts with hydrogen and carbon monoxide,
Water, carbon dioxide, and electrons are produced. In this way, electricity is generated, and water and carbon dioxide generated at the same time are sent from the anode gas passage 7 through the anode gas exhaust pipe 18 to the catalytic combustor 17.
触媒燃焼器１７では、アノードガス排気管１８からの反
応後のアノードガス１０に含まれる未反応の水素とカソ
ードガスリサイクル管２４からの反応後のカソードガス
１４に含まれる未反応の酸素とを触媒の存在下にて燃焼
させ、アノードガス１０に含まれる二酸化炭素をカソー
ドガス１４中に供給させる。In the catalytic combustor 17, unreacted hydrogen contained in the anode gas 10 after the reaction from the anode gas exhaust pipe 18 and unreacted oxygen contained in the cathode gas 14 after the reaction from the cathode gas recycle pipe 24 are catalyzed. The carbon dioxide contained in the anode gas 10 is supplied to the cathode gas 14.
そして、アノードガス通路７の圧力は、圧力調節計２０
がスタック容器３内部の圧力とアノードガス排気管１８
の圧力を検出し、スタック容器３内部の圧力とアノード
ガス排気管１８の圧力との差圧を取り、該差圧かゼロと
なるよう圧力調節弁１９を調節することによってスタッ
ク容器３内部と等しい圧力に保たせ、カソードガス通路
８の圧力は、圧力調節計２３がスタック容器３内部の圧
力とカソードガス排気管２１の圧力を検出（７、スタッ
ク容器３内部の圧力とカソードガス排気管２１の圧力と
の差圧を取り、該差圧がゼロとなるよう圧力調節弁２２
を調節することによってスタック容器３内部と等しい圧
力に保たせる。その結果、アノードガス通路７とカソー
ドガス通路８は等しい圧力に保たれ、アノードガス通路
７とカソードガス通路８との間の差圧によって、極く薄
い層から成っているアノード５やカソートロや電解質４
か破れるのか防止される。The pressure in the anode gas passage 7 is controlled by a pressure regulator 20.
is the pressure inside the stack container 3 and the anode gas exhaust pipe 18.
Detect the pressure inside the stack container 3, take the pressure difference between the pressure inside the stack container 3 and the pressure in the anode gas exhaust pipe 18, and adjust the pressure regulating valve 19 so that the pressure difference becomes zero, so that the pressure is equal to the pressure inside the stack container 3. The pressure in the cathode gas passage 8 is maintained at a constant pressure by the pressure controller 23, which detects the pressure inside the stack container 3 and the pressure in the cathode gas exhaust pipe 21 (7). The pressure regulating valve 22 takes the differential pressure from the pressure and makes the differential pressure zero.
The pressure inside the stack container 3 is maintained by adjusting the pressure. As a result, the anode gas passage 7 and the cathode gas passage 8 are kept at the same pressure, and the pressure difference between the anode gas passage 7 and the cathode gas passage 8 causes the anode 5, which is made of an extremely thin layer, the cathode gas passage 8, and the electrolyte 4
or breakage is prevented.
［発明が解決しようとする課題］
１、かり、なから、上記従来の燃料電池には、以下のよ
うな問題があった。[Problems to be Solved by the Invention] 1. The conventional fuel cell described above has the following problems.
即ち、アノードガス通路７とカソードガス通路８との間
に差圧か生じてアノード５やカソード６や電解質４が破
れるのを防止するため、アノードガス排気管１８やカソ
ードガス排気管２１に高価な圧力調節弁１９．２２や圧
力調節計２０．２３を用いていノーので、設備全体のコ
スト高を招いていた。That is, in order to prevent the anode 5, cathode 6, and electrolyte 4 from being ruptured due to a pressure difference between the anode gas passage 7 and the cathode gas passage 8, an expensive gas exhaust pipe 18 and cathode gas exhaust pipe 21 are installed. Since no pressure regulating valve 19.22 or pressure regulator 20.23 was used, the cost of the entire equipment increased.
本発明は、上述の実情に鑑み、高価な圧力調節弁や圧力
調節計を用いずにアノード側とカッーＦ側の圧力を等し
く保つことにより、極く薄い層から成っているアノード
やカソードや電解質が差ｌモによって石“ｑわるのを一
防止し得るようにした燃料電池を提供することを目的と
するものである。In view of the above-mentioned circumstances, the present invention has been developed to maintain the same pressure on the anode side and the cup F side without using expensive pressure control valves or pressure regulators. It is an object of the present invention to provide a fuel cell which can prevent the fuel cell from becoming damaged due to differences in temperature.
［課題を解決するだめの手段］
本ざ１−明は、電解質をアノードとカソードで挟１７ｉ
１ア７ノ・−ドに燃料から成るアノードガスを供給可能
とすると共にカソードに酸化剤から成るカソードガスを
供給可能とした燃料電池において、一定量の液を封入す
ることにより内部に圧力室を形成された一対の液封管を
設け、該液封管の下部間を連通管で連通ずることにより
均圧装置を形成し、アノード出側に接続されたアノード
ガス排気管の途中に均圧装置の一方の液封管の圧力室を
接続し、カソード出側に接続されたカソードガス排気管
の途中に均肚装置の他方の液封管の圧力室を接続したこ
とを特徴とする燃料電池に掛るものである。３
［作 用］
均圧装置では、各液封管の圧力室内部に圧力差かある場
合、各圧力室内部の圧力差に応じて各液封管の液面が変
化することにより、各圧力室の圧力か等しくされるので
、一方の圧力室に接続されたアノードガス排気管の圧力
と他方の圧力室に接続されたカソードがス排気管の圧力
は常に等しい圧力に保たれる１、
［実 施 例］
以下、本発明の実施例を図面を参照しつつ説明する。[Means to solve the problem] In this paper, the electrolyte is sandwiched between the anode and the cathode.
In a fuel cell in which an anode gas consisting of fuel can be supplied to the 1A7 node and a cathode gas consisting of an oxidizing agent can be supplied to the cathode, a pressure chamber is created inside by sealing a certain amount of liquid. A pressure equalizing device is formed by providing a pair of liquid sealing tubes, and communicating the lower portions of the liquid sealing tubes with a communication tube, and installing a pressure equalizing device in the middle of the anode gas exhaust pipe connected to the anode outlet side. A fuel cell characterized in that the pressure chamber of one of the liquid sealing tubes is connected to the pressure chamber of the other liquid sealing tube of the equalizing device, and the pressure chamber of the other liquid sealing tube of the equalizing device is connected to the middle of the cathode gas exhaust pipe connected to the cathode outlet side. It's something to hang on to. 3 [Function] In the pressure equalization device, if there is a pressure difference inside the pressure chambers of each liquid seal tube, the liquid level of each liquid seal tube changes according to the pressure difference inside each pressure chamber, so that each pressure is increased. Since the pressures in the chambers are equalized, the pressure in the anode gas exhaust pipe connected to one pressure chamber and the pressure in the cathode gas exhaust pipe connected to the other pressure chamber are always kept at the same pressure. Embodiments] Hereinafter, embodiments of the present invention will be described with reference to the drawings.
第１図・第２図は、本発明の一実施例である。FIGS. 1 and 2 show an embodiment of the present invention.
又、図中、燃料電池の基本構成や各構成部分の詳細の中
には、第３図に示すものと同様のものが含まれているた
め、同一の構成部分については同一の符号を付すことに
より説明を省略するものとし、以下、本発明に特有の構
成についてのみ説明して行く。In addition, the basic structure of the fuel cell and the details of each component in the figure include those similar to those shown in FIG. 3, so the same components are denoted by the same reference numerals. Therefore, the explanation will be omitted, and only the configuration specific to the present invention will be explained below.
水等の液２６を一定量封入することにより内部に圧力室
２７．２８を形成された一対の液封管２９．３０を設け
、該液封管２９．３０の下部間を連通管３１で連通ずる
ことにより均圧装置３２を形成する。A pair of liquid sealing tubes 29.30 each having a pressure chamber 27.28 formed therein by sealing a certain amount of liquid 26 such as water is provided, and a communicating tube 31 connects the lower portions of the liquid sealing tubes 29.30. By communicating with each other, a pressure equalizing device 32 is formed.
アノードガス排気管１８の途中に均圧装置３２の一方の
液封管２９の圧力室２７を接続し、カソードガス排気管
２１の途中に均圧装置３２の他方の液封管３０の圧力室
２８を接続する。The pressure chamber 27 of one liquid seal tube 29 of the pressure equalizing device 32 is connected to the middle of the anode gas exhaust pipe 18, and the pressure chamber 27 of the other liquid seal tube 30 of the pressure equalizing device 32 is connected to the middle of the cathode gas exhaust pipe 21. Connect.
次に、作用について説明する。Next, the effect will be explained.
燃料電池本体１で電気が発生される過程については、第
３図のものと同様なので説明を省略する。The process by which electricity is generated in the fuel cell main body 1 is the same as that shown in FIG. 3, so a description thereof will be omitted.
均圧装置３２の一方の液封管２９では、圧力室２７がア
ノードガス排気管１８に接続されているので、圧力室２
７内部の圧力はアノードガス排気管１８の圧力、即ち、
アノードガス通路７内部の圧力と等しくなっている。In one liquid seal pipe 29 of the pressure equalizing device 32, the pressure chamber 27 is connected to the anode gas exhaust pipe 18, so that the pressure chamber 27 is connected to the anode gas exhaust pipe 18.
The pressure inside 7 is the pressure of the anode gas exhaust pipe 18, that is,
The pressure inside the anode gas passage 7 is equal to the pressure inside the anode gas passage 7.
又、均圧装置３２の他方の液封管３０では、圧力室２８
かカソードガス排気管２１に接続されているので、圧力
室２８内部の圧力はカソードガス排気管２１の圧力、即
ち、カソードガス通路８内部の圧力と等しくなっている
。In addition, in the other liquid seal pipe 30 of the pressure equalizing device 32, the pressure chamber 28
Since the pressure chamber 28 is connected to the cathode gas exhaust pipe 21, the pressure inside the pressure chamber 28 is equal to the pressure in the cathode gas exhaust pipe 21, that is, the pressure inside the cathode gas passage 8.
そして、一対の液封管２９．３０は下部間を連通管３１
で連通されているので、自由に液か液封管２９．３０間
を出入りできるようになっている。The pair of liquid seal pipes 29 and 30 connect the lower part to the communication pipe 31.
Since they are in communication with each other, liquid can freely flow in and out between the liquid seal tubes 29 and 30.
そして、液封管２９．３０の内部では、圧力室２７２８
内部の圧力によって液２６の液面が押されるので、圧力
室２７．２８内部の圧力に差かある場合には、液２６か
連通管３１を介して圧力の高い方から低い方の液封管２
９．３０へ移動されて液面が変化され、これにより圧力
室２７．２８内部の水頭圧か等しくされる。Inside the liquid seal pipe 29.30, a pressure chamber 2728
Since the liquid level of the liquid 26 is pushed by the internal pressure, if there is a difference in the pressure inside the pressure chambers 27 and 28, the liquid 26 is transferred from the higher pressure to the lower liquid sealing tube via the communication pipe 31. 2
9.30 to change the liquid level, thereby equalizing the head pressure inside the pressure chambers 27,28.
従って、圧力室２７に接続されたアノートガ２通路７内
部の圧力と、圧力室２８に接続されたカソードガス通路
８内部の圧力は常に等しい圧力に保たれる。Therefore, the pressure inside the anode gas passage 7 connected to the pressure chamber 27 and the pressure inside the cathode gas passage 8 connected to the pressure chamber 28 are always maintained at the same pressure.
尚、本発明は、上述の実施例にのみ限定さｔ。It should be noted that the present invention is limited only to the above-described embodiments.
るものではなく、本発明の要旨を逸脱しない斬囲内にお
いて種々変更を加え得ることは勿論である。It goes without saying that the present invention is not limited to the present invention, and that various changes may be made without departing from the spirit of the present invention.
［発明の効果］
以」−説明したように、本発明の燃料電池によれば、液
封管による均圧装置を用いたので、セ価な圧力調節弁や
圧力調節計を用いずにアノード側とカソード側の圧力を
等しくすることがてき、極く薄い層から成るアノードや
カソードや電解質か差圧によって破れるのを防止し得る
という優れた効果を奏し得る。[Effects of the Invention] As explained above, according to the fuel cell of the present invention, since a pressure equalization device using a liquid seal tube is used, the pressure on the anode side can be adjusted without using an expensive pressure regulating valve or pressure regulator. The pressure on the cathode side can be made equal to the pressure on the cathode side, and an excellent effect can be achieved in that the anode, cathode, and electrolyte made of extremely thin layers can be prevented from being broken due to differential pressure.
第１図は本発明の一実施例の全体系統図、第２図は第１
図の部分拡大図、第３図は従来例の全体系統図である。
図中４は電解質、５はアノード、６はカソード、１０は
アノードガス、１４はカソードガス、１８はアノードガ
ス排気管、２１はカソードガス排気管、２６は液、２７
．２８は圧力室、２９．３０は液封管、３１は連通管、
３２は均圧装置を示す。
特
許出願人
石川島播磨重工業株式会社FIG. 1 is an overall system diagram of one embodiment of the present invention, and FIG.
A partially enlarged view of the figure, and FIG. 3 is an overall system diagram of a conventional example. In the figure, 4 is an electrolyte, 5 is an anode, 6 is a cathode, 10 is an anode gas, 14 is a cathode gas, 18 is an anode gas exhaust pipe, 21 is a cathode gas exhaust pipe, 26 is a liquid, 27
．． 28 is a pressure chamber, 29.30 is a liquid sealing pipe, 31 is a communication pipe,
32 indicates a pressure equalization device. Patent applicant Ishikawajima Harima Heavy Industries Co., Ltd.
Claims (1)
料から成るアノードガスを供給可能とすると共にカソー
ドに酸化剤から成るカソードガスを供給可能とした燃料
電池において、一定量の液を封入することにより内部に
圧力室を形成された一対の液封管を設け、該液封管の下
部間を連通管で連通することにより均圧装置を形成し、
アノード出側に接続されたアノードガス排気管の途中に
均圧装置の一方の液封管の圧力室を接続し、カソード出
側に接続されたカソードガス排気管の途中に均圧装置の
他方の液封管の圧力室を接続したことを特徴とする燃料
電池。1) In a fuel cell in which an electrolyte is sandwiched between an anode and a cathode, and an anode gas consisting of fuel can be supplied to the anode, and a cathode gas consisting of an oxidizing agent can be supplied to the cathode, the internal A pair of liquid seal tubes each having a pressure chamber formed therein are provided, and a pressure equalizing device is formed by communicating the lower portions of the liquid seal tubes with a communication tube,
Connect the pressure chamber of one liquid seal pipe of the pressure equalizing device to the middle of the anode gas exhaust pipe connected to the anode outlet side, and connect the pressure chamber of the other liquid seal pipe of the pressure equalizing device to the middle of the cathode gas exhaust pipe connected to the cathode outlet side. A fuel cell characterized in that a pressure chamber of a liquid seal tube is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2265707A JPH04144065A (en) | 1990-10-03 | 1990-10-03 | Fuel cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2265707A JPH04144065A (en) | 1990-10-03 | 1990-10-03 | Fuel cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH04144065A true JPH04144065A (en) | 1992-05-18 |
Family
ID=17420897
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2265707A Pending JPH04144065A (en) | 1990-10-03 | 1990-10-03 | Fuel cell |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH04144065A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024082031A1 (en) * | 2023-03-13 | 2024-04-25 | Hysata Pty Ltd | Balance-of-plant for electro-synthetic or electro-energy liquid-gas cells or cell stacks |
-
1990
- 1990-10-03 JP JP2265707A patent/JPH04144065A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2024082031A1 (en) * | 2023-03-13 | 2024-04-25 | Hysata Pty Ltd | Balance-of-plant for electro-synthetic or electro-energy liquid-gas cells or cell stacks |
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