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1.前言根据船舶救生设备规范规定,在船舶上应当备有各种救生设备,其中之一就是气胀式救生筏。这类气胀式救生筏,平时折叠得很小,存放在筒内,万一要使用时,使充满在气瓶中的高压气喷出,筏就充胀成形,收容水面上的遇难人员,起到救生的作用,因而对救生事业作出了很大贡献。以往作为充气膨胀用的气体,使用液态二氧化碳。可是,使用液态二氧化碳时,在寒冷地区,有气化太迟这样的缺点,因此,希望研究对策,以缩短救生筏在低温时达到能使用的状态所需要的膨胀时间。
1. INTRODUCTION According to the Code for Ship Life-saving Equipment, a variety of life-saving equipment should be provided on board the ship, one of which is an inflatable liferaft. Such inflatable life rafts, usually folded very small, stored in the cylinder, in case you want to use, so that filled with gas in high pressure gas jet, raft inflation shape, the victims on the water surface, Play the role of life-saving, which made a great contribution to the cause of life. Conventionally, as the gas for inflation, liquid carbon dioxide has been used. However, when liquid carbon dioxide is used, there is a disadvantage that gasification is too slow in a cold region. Therefore, it is demanded to study a countermeasure to shorten an expansion time required for a life raft to reach a usable state at a low temperature.