WATER STORAGE TANK

• Main Author: AKEMOTO HITOSHI
• Format: Patent
• Language: English; Japanese
• Published: 28.09.2017
• Subjects: BASIC ELECTRIC ELEMENTS; ELECTRICITY; PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY

PROBLEM TO BE SOLVED: To provide a water storage tank capable of storing water generated with power generation of a fuel cell system inside the tank and surely diluting the hydrogen exhausted to the outside of the fuel cell system before exhausting it.SOLUTION: A water storage tank 10 of a fuel cell system 100 comprises: a tank body 11; a hydrogen introducing chamber S1 formed with a hydrogen introducing hole 15 into which an anode off-gas flows; an air introducing hole 16 into which a cathode off-gas flows; a diluting chamber S2 formed with an exhaust hole 17 to which a gas is exhausted; and a partition wall 12 provided between the hydrogen introducing chamber S1 and the diluting chamber S2 and formed with a communication port 19. The communication port 19 comprises a high-concentration hydrogen region 19a, and an air circulating region 19b provided below the high-concentration hydrogen region 19a. A width R1 of the high-concentration hydrogen region 19a is smaller than a width R2 of the air circulating region 19b.SELECTED DRAWING: Figure 2 【課題】燃料電池システムの発電に伴い発生した水を内部に貯留するとともに、燃料電池システムの外部に排気される水素を排気前に確実に希釈することができる貯水タンクを提供する。【解決手段】燃料電池システム１００の貯水タンク１０は、タンク本体１１と、アノードオフガスが流入する水素導入孔１５が形成される水素導入室Ｓ１と、カソードオフガスが流入する空気導入孔１６と、気体が排気される排気孔１７とが形成される希釈室Ｓ２と、水素導入室Ｓ１と希釈室Ｓ２との間に設けられ、連通口１９が形成される隔壁１２とを備え、連通口１９は、高濃度水素領域１９ａと、高濃度水素領域１９ａの下方に設けられる空気流通領域１９ｂとを有し、高濃度水素領域１９ａの幅Ｒ１は、空気流通領域１９ｂの幅Ｒ２よりも小さい。【選択図】図２