Valve for Cryogenic Liquid Gas

The present invention relates to a valve for cryogenic liquefied gas. More specifically, the present invention relates to the valve for cryogenic liquefied gas, which is the valve provided to a transfer pipe or a storage container of cryogenic liquefied gas such as liquefied hydrogen of -253℃ to con...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KIM, YOUNG BUM, MAENG SUK HO, SONG YEAH JIN, YUN JEONG EUI
Format: Patent
Sprache:eng ; kor
Schlagworte:
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Beschreibung
Zusammenfassung:The present invention relates to a valve for cryogenic liquefied gas. More specifically, the present invention relates to the valve for cryogenic liquefied gas, which is the valve provided to a transfer pipe or a storage container of cryogenic liquefied gas such as liquefied hydrogen of -253℃ to control a flow of the cryogenic liquefied gas. More specifically, the valve for cryogenic liquefied gas prevents leakage of the liquefied gas in a cryogenic state and blocks cold transmission through a valve stem and a bonnet to have a structure of preventing inoperability due to freezing of a valve driving unit and enabling stable operation. 본 발명은 극저온 액화가스용 밸브에 관한 것으로, 더욱 상세하게는 (-)253℃의 액화수소 등과 같은 극저온 액화가스의 이송 배관이나 저장용기에 구비되어, 극저온 액화가스의 흐름을 제어하는 밸브로서, 특히 극저온 상태의 액화가스의 누설을 방지할 뿐 아니라 밸브 스템 및 본넷을 통한 냉열 전달을 차단하여 밸브 구동부의 동결에 의해 작동 불능 상태가 되는 것을 방지하고 안정적인 작동을 할 수 있는 구조를 갖는 극저온 액화가스용 밸브에 관한 것이다.