| 摘要 |
<p>The method inserts sections of pressurised gas containments for repairs and/or maintenance. In the following, gas imports mixtures, inert imports non-combustibility, network imports gas mains and fuel gas imports any fuel gas, which especially includes methane. Containments include storage and transport equipment including tanks, pipelines and mains distribution sections. In the procedure, the supply section of the network is blanked off. Inert flushing gas is then injected into the separated zone.</p> |
