| 摘要 |
A method for delivery of cryogenic combustible gases to users is described, where the combustible gas is kept in one or more storage tanks (10, 20) in a liquid state, such as LNG, as said number of tanks are arranged to be filled up after they are emptied at the delivery to the users, and where a conduit (22, 24) leads gas in liquid state by way of an evaporator to said users. The method is characterized by the following steps: that the storage tanks (10, 20) are mobile and movable tanks which, when empty, are disconnected from the conduits (22, 24) and transported away for refilling of liquid gas, and thereafter reinstalled and reconnected to the conduits (22, 24); that a system is used which perform a switching between the tanks (10, 20) by means of adapted valve systems (40, 47, 49, 42, 51, 53) so that two or more mobile tanks may be used simultaneously in the system, and where one of said tanks is emptied of combustible gas before the other is emptied, where said switching is arranged to be carried out automatically; that systems (60, 62, 64, 66) are used to prevent unwanted pressure build-up in the mobile tanks (10, 20); and that systems (21, 23) are used for quick disconnection and connection of the tanks (10, 20). A system is also described, and use of the present invention for storage and transport of liquid gasses such as LNG gas, oxygen, nitrogen or other industrial gasses, for supplying industry and private households. |
