Title:
PRESSURE RELIEF DEVICE FOR HIGH-PRESSURE VESSEL
Document Type and Number:
WIPO Patent Application WO/2022/270795
Kind Code:
A1
Abstract:
A pressure relief device for a high-pressure vessel of the present invention comprises: a first body part which is coupled to a valve body mounted on a high-pressure vessel, and which has a gas passage and a space part formed, the gas passage having a gas of the high-pressure vessel entering therein, and the space part communicating with the gas passage; a second body which is mounted in the space part of the first body part, and has a gas outlet and a chamber formed, the gas outlet discharging, to the outside, the gas that has entered into the space part, and the chamber communicating with the space part; a piston member which is mounted in the chamber so as to be linearly moveable so as to open/close the gas passage; a spring disposed between the space part and the piston member so as to provide an elastic force in the backward-moving direction of the piston member; and a fusible alloy which is mounted in the chamber in a position at the rear of the piston member, and melts when the surrounding temperature reaches a predetermined temperature or higher, wherein, when the fusible alloy melts and is thus discharged to the outside of the chamber, the piston member moves backwards, thereby opening the gas passage, and thus the gas may be rapidly discharged, and reliability may be increased.
Inventors:
KIM BYUNG JAE (KR)
NAM WOO CHEOL (KR)
NAM WOO CHEOL (KR)
Application Number:
PCT/KR2022/007992
Publication Date:
December 29, 2022
Filing Date:
June 07, 2022
Export Citation:
Assignee:
YOUNGDO IND CO LTD (KR)
International Classes:
F17C13/12; F16K17/00; F17C13/04
Domestic Patent References:
| WO2010136908A1 | 2010-12-02 |
Foreign References:
| KR20150027816A | 2015-03-12 | |||
| KR101114531B1 | 2012-02-27 | |||
| JPS62220784A | 1987-09-28 | |||
| KR100589479B1 | 2006-06-14 | |||
| KR100964738B1 | 2010-06-21 |
Attorney, Agent or Firm:
LEE, Jae Hwa (KR)
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