A valve installed at the main seawater intake of a ship. In diesel ships, seawater is taken in to cool the cooling water for the diesel engine, and in turbine ships, seawater is taken in to cool the boiler condenser. When steamships were invented, a pump was used to suck up seawater from the bottom of the ship to cool the condenser, and a valve was installed so that this pump could also be used to drain water in the event of flooding, but the origin of the name is unknown. [Onaga Kazuhiko] Source: Heibonsha World Encyclopedia, 2nd Edition Information |
船の主海水取入口に設けられる弁。ディーゼル船ではディーゼルエンジンの冷却水を冷却するための海水を,またタービン船ではボイラーの復水器を冷却するための海水を取り入れる。蒸気船が発明されたとき,船底から海水をポンプで吸い上げて復水器の冷却用とし,さらに万一浸水したときにこのポンプを排水用に利用するために弁を設けたのが始まりであるが,名称の由来については不詳。【翁長 一彦】
出典 株式会社平凡社世界大百科事典 第2版について 情報 |
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