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新华社莫斯科6月21日电(记者栾海)为使常规动力潜艇在水下“憋气”时间更长,俄罗斯正抓紧研制采用“断氧”辅助发动机的拉达级“喀琅施塔得”号潜艇。该潜艇预计明年下水。
俄新社日前报道,这艘潜艇由俄罗斯红宝石设计局研发,目前正由位于圣彼得堡的“海军造船厂”制造。
常规动力潜艇需要依靠柴油机给蓄电池充电才能在水下航行。由于柴油机工作需要氧气,常规动力潜艇每潜航一段时间就需浮出水面,开动柴油机为电池充电。
为延长潜航时间,俄罗斯研究人员额外为潜艇配备了辅助动力装置——“断氧”发动机。这种发动机以燃烧氢气或液化天然气等方式发电,无需耗氧,而且可以利用主发动机所用柴油制取氢气。
俄专家介绍说,艇内无需储备氢气是“喀琅施塔得”号的一大特点,相比之下,德国、法国研制的同类潜艇均需在艇内储存氢气或液化气。
专家表示,常规动力潜艇在水下最多潜航数天,核潜艇虽能两三个月出水补给一次,但养护费用高昂,若在波罗的海、黑海、里海等较小水域频繁使用,过于大材小用。这时,装有“断氧”发动机、潜航时间可达25天的这种拉达级潜艇刚好可以派上用场。
(原标题:俄“断氧”动力潜艇明年下水)
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