How to dry transport and / or storage containers

摘要

PROBLEM TO BE SOLVED: To dry a transport container and / or a storage container which is easy and can be carried out without much labor, is outstanding in high drying efficiency, and is also suitable for a container having a particularly high heat output. Provide a method. SOLUTION: A container 1 is first drained or mechanically drained, and then a container inner chamber 4 is continuously vacuum-exhausted or held at a negative pressure, and at the same time, a continuously inert gas, suitable. The helium gas is supplied to the container inner chamber 4, and the vacuum exhaust and / or the inert gas supply or the helium gas supply is provided so that the inert gas content or the helium gas content in the container inner chamber is 50 vol% to 95 vol%. In particular, it is carried out under the condition that it is 55 vol% to 90 vol%, preferably 60 vol% to 85 vol%, and preferably 65 vol% to 85 vol%. [Selection diagram] Fig. 1