FUEL CELL MEMBRANE HUMIDIFIER

The present invention relates to a fuel cell membrane humidifier which adjusts a clearance between hollow fiber membranes according to a temperature of a fluid flowing between the hollow fiber membranes to improve humidification efficiency. A fuel cell membrane humidifier according to an embodiment...

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Main Authors LEE, Ji Yoon, LEE, Ah Reum, KIM, Kyoung Ju, OH, Young Seok
Format Patent
LanguageEnglish
French
Korean
Published 25.08.2022
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Abstract The present invention relates to a fuel cell membrane humidifier which adjusts a clearance between hollow fiber membranes according to a temperature of a fluid flowing between the hollow fiber membranes to improve humidification efficiency. A fuel cell membrane humidifier according to an embodiment of the present invention comprises: a mid-case; a cap fastened to the mid-case; a plurality of hollow fiber membranes disposed in the mid-case and exchanging moisture with an air supplied from the outside and flue gas introduced from a fuel cell stack to humidify the air; and a clearance adjustment pipe disposed between the plurality of hollow fiber membranes and formed of a material having a thermal expansion coefficient different from that of the plurality of hollow fiber membranes, so as to adjust the clearance between the plurality of hollow fiber membranes according to a temperature of flue gas. La présente invention concerne un humidificateur à membrane de pile à combustible qui ajuste un espacement entre des membranes à fibres creuses en fonction d'une température d'un fluide s'écoulant entre les membranes à fibres creuses pour améliorer l'efficacité d'humidification. Un humidificateur à membrane de pile à combustible selon un mode de réalisation de la présente invention comprend : un boîtier central ; un capuchon fixé au boîtier central ; une pluralité de membranes à fibres creuses disposées dans le boîtier central et échangeant de l'humidité avec un air apporté depuis l'extérieur et du gaz de combustion introduit à partir d'un empilement de piles à combustible pour humidifier l'air ; et un tuyau d'ajustement d'espacement disposé entre la pluralité de membranes à fibres creuses et formé d'un matériau présentant un coefficient de dilatation thermique différent de celui de la pluralité de membranes à fibres creuses, de manière à ajuster l'espacement entre la pluralité de membranes à fibres creuses en fonction d'une température de gaz de combustion. 본 발명은 중공사막들 사이에서 유동하는 유체의 온도에 따라 중공사막들 사이의 공극을 조절하여 가습 효율을 향상시킬 수 있는 연료전지 막가습기에 관한 것으로, 본 발명의 실시예에 따른 연료전지 막가습기는, 미드-케이스; 상기 미드-케이스와 체결되는 캡; 상기 미드-케이스 내에 배치되며, 외부로부터 공급되는 공기와 연료전지 스택으로부터 유입된 배가스와 수분 교환하여 상기 공기를 가습하는 복수의 중공사막들; 및 상기 복수의 중공사막들 사이에 배치되고, 상기 복수의 중공사막들과 열팽창율이 다른 물질로 형성되어 상기 배가스의 온도에 따라 상기 복수의 중공사막들 사이의 공극을 조절하는 공극 조절관;을 포함한다.
AbstractList The present invention relates to a fuel cell membrane humidifier which adjusts a clearance between hollow fiber membranes according to a temperature of a fluid flowing between the hollow fiber membranes to improve humidification efficiency. A fuel cell membrane humidifier according to an embodiment of the present invention comprises: a mid-case; a cap fastened to the mid-case; a plurality of hollow fiber membranes disposed in the mid-case and exchanging moisture with an air supplied from the outside and flue gas introduced from a fuel cell stack to humidify the air; and a clearance adjustment pipe disposed between the plurality of hollow fiber membranes and formed of a material having a thermal expansion coefficient different from that of the plurality of hollow fiber membranes, so as to adjust the clearance between the plurality of hollow fiber membranes according to a temperature of flue gas. La présente invention concerne un humidificateur à membrane de pile à combustible qui ajuste un espacement entre des membranes à fibres creuses en fonction d'une température d'un fluide s'écoulant entre les membranes à fibres creuses pour améliorer l'efficacité d'humidification. Un humidificateur à membrane de pile à combustible selon un mode de réalisation de la présente invention comprend : un boîtier central ; un capuchon fixé au boîtier central ; une pluralité de membranes à fibres creuses disposées dans le boîtier central et échangeant de l'humidité avec un air apporté depuis l'extérieur et du gaz de combustion introduit à partir d'un empilement de piles à combustible pour humidifier l'air ; et un tuyau d'ajustement d'espacement disposé entre la pluralité de membranes à fibres creuses et formé d'un matériau présentant un coefficient de dilatation thermique différent de celui de la pluralité de membranes à fibres creuses, de manière à ajuster l'espacement entre la pluralité de membranes à fibres creuses en fonction d'une température de gaz de combustion. 본 발명은 중공사막들 사이에서 유동하는 유체의 온도에 따라 중공사막들 사이의 공극을 조절하여 가습 효율을 향상시킬 수 있는 연료전지 막가습기에 관한 것으로, 본 발명의 실시예에 따른 연료전지 막가습기는, 미드-케이스; 상기 미드-케이스와 체결되는 캡; 상기 미드-케이스 내에 배치되며, 외부로부터 공급되는 공기와 연료전지 스택으로부터 유입된 배가스와 수분 교환하여 상기 공기를 가습하는 복수의 중공사막들; 및 상기 복수의 중공사막들 사이에 배치되고, 상기 복수의 중공사막들과 열팽창율이 다른 물질로 형성되어 상기 배가스의 온도에 따라 상기 복수의 중공사막들 사이의 공극을 조절하는 공극 조절관;을 포함한다.
Author OH, Young Seok
LEE, Ah Reum
LEE, Ji Yoon
KIM, Kyoung Ju
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DocumentTitleAlternate 연료전지 막가습기
HUMIDIFICATEUR À MEMBRANE DE PILE À COMBUSTIBLE
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Snippet The present invention relates to a fuel cell membrane humidifier which adjusts a clearance between hollow fiber membranes according to a temperature of a fluid...
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SubjectTerms BASIC ELECTRIC ELEMENTS
ELECTRICITY
PERFORMING OPERATIONS
PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
PROCESSES OR MEANS, e.g. BATTERIES, FOR THE DIRECT CONVERSIONOF CHEMICAL INTO ELECTRICAL ENERGY
SEPARATION
TRANSPORTING
Title FUEL CELL MEMBRANE HUMIDIFIER
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