本部分阐述的 API 计划由 API 682 第 3 版和 API 610 第 10 版定义。这些是业内广泛采用的标准冲洗管道布置。客户可根据需要采用不同的计划。
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Externally pressurised barrier gas supplied through a gas control system to a dual seal arrangement. An inert gas is used as a barrier gas.
Leakage of condensate from inboard seal of a dual containment seal is directed to a liquid collector.
Vapour leakages from inboard seal of dual containment seal are directed to a vapour recovery system via a vent connection.