수소충전소용 고압 릴리프밸브 국산화 기술 개발

• Published in: 한국수소 및 신에너지학회 논문집 Vol. 36; no. 4; pp. 407 - 412
• Main Authors: 김민우, 이정환, 강춘명, 방영준, 강부민, 김호영, 장덕호, 임경민, 왕학민, MIN WOO KIM, JUNG HWAN LEE, CHUN MYEONG KANG, YOUNG-JUN BANG, BOO MIN KANG, HO YOUNG KIM, DEOK-HO JANG, KYUNG MIN IM, HAK-MIN WANG
• Format: Journal Article
• Language: Korean
• Published: 한국수소및신에너지학회 01.08.2025
• Subjects: 기계공학
• ISSN: 1738-7264; 2288-7407

The high-pressure relief valve used in hydrogen refueling stations is a critical component that mitigates excessive pressure, ensuring the safe and proper operation of the station. However, the domestic supply of this component is entirely dependent on imports. To address this issue, the present study aimed to develop and localize a high-pressure relief valve specifically designed for hydrogen refueling stations. The Changwon Industry Promotion Agency, which operates nine hydrogen refueling stations, conducted an analysis of the materials and structural characteristics of imported high-pressure relief valves to identify the root causes of failures under actual operating conditions. Based on this analysis, efforts were made to localize the valves by optimizing materials and improving the structural design to enhance their strength and durability. Validation tests of the newly developed product's high-pressure relief valve demonstrated a 29% reduction in maximum stress compared to existing imported models, confirming improved structural stability. Furthermore, through appropriate materials and structural design tailored to real-world hydrogen station operating conditions, the feasibility of domestic production and commercialization was successfully demonstrated.