| 摘要 |
<p>PURPOSE:To prevent the opening port from blocking by ice by installing the bulkhead on the lower side and a fence or a reticulate enclosure on the upper side around the opening port for flowing out liquid. CONSTITUTION:The bulkhead 8a on the lower side, an enclosure 8 composed of net 8b on the upper side are fitted around the opening port 3 for flowing out. By such a constitution, in the event of flowing liquid nitrogen off to a vessel, frosty ice is removed by the net 8b, granular ice is removed by the bulkhead 8a, to obviate blocking the opening port for flowing out.</p> |
