• Journal of the Korean Institute of Gas
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• v.12 no.3
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• pp.64-67
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• 2008

The valve applied air pressure type of high pressure packing is developed to prolong the lifetime and to enhance the airtight. The effective valve developed enables to get remove the remaining pressure through the part of valve in handle so that a separate valve to drain is no need. The character of valve developed in this experiment is high packing of valve through special form and having drain hole in stem that enables a drainage regardless the status of vale is closed or opened.

• Fire Science and Engineering
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• v.33 no.1
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• pp.45-49
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• 2019

This study examined the safety of storage tanks by analyzing the causes of fire on outdoor storage tanks. The outdoor storage tank is a fixed device for the long-term storage of dangerous goods and consists of a tank body and accessories; the accessories consist of a vent system, breather valve, flame arrestor, etc. The flame arrestor is a necessary safety measure to prevent fire explosions on outdoor storage tanks. On the other hand, it has been suggested that the installation of a flame arrester is necessary to compare the domestic and international standards. In addition, the flame arrester should be installed in the existing outdoor storage tanks, to complement foreign standards because there are not enough domestic standards to verify the performance of the flame arrester.

• Journal of the Korean Society of Manufacturing Process Engineers
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• v.15 no.5
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• pp.117-124
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• 2016

In this paper, we developed a breather valve with a water mist system for use near an oil storage tank. Our process applied a water mist system to the flame arrester to evaluate the fire suppression characteristics. For the fire suppression evaluation of the water mist system, we evaluated the angle of the nozzle, fire suppression, spray particle size, flashback, fire suppression time, and fire suppression test of antifreeze. Through the fire suppression test, the best fire suppression nozzle used an angle of $140^{\circ}$, and the flashback phenomenon of flame arrester did not occur. The fire suppression time of water mist system time was within three seconds, and the antifreeze was no problem with the fire suppression.