Questions about GB50160-2008?

2010-12-17View Original

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According to 7.2.9 of GB50160-2008, Class A and Class B A equipment and pipelines shall be equipped with inert gas displacement facilities. How should we understand \"inert gases\"? Also, why are many liquid hydrocarbons in modern enterprises purged only with steam? Thank you all

Reply #22010-12-17

Inert gases are gases that have extremely low chemical reactivity. The most commonly used and cost-effective inert gas for purging pipes in industry is nitrogen

Reply #32010-12-17

Currently, many older companies use steam purging when repairing liquid hydrocarbon pipelines – is this reasonable? What are the hazards? In other words, in certain situations, can steam be considered an inert gas?

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