This paper briefly introduces the inert gas plant system in some very large crude carrier. The basic working principle including the main functions of the system and the control way is analyzed. The importance parameters of the system are studied.%简要介绍了公司制造的某型超大原油船的惰气保护系统,分析了该系统的功能、基本工作原理和控制方式,并对该系统各控制参数的设置及其原理进行了研究和说明。
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