초록 ▼

The invention disclosed relates to an apparatus for purging hazardous or volatile materials from external loading lines fixed to the bottom of cargo tank compartments. According to the invention, pressurized gas is directed into each external loading line to force the material to the lowest point in

The invention disclosed relates to an apparatus for purging hazardous or volatile materials from external loading lines fixed to the bottom of cargo tank compartments. According to the invention, pressurized gas is directed into each external loading line to force the material to the lowest point in the loading line, through a purging tube, and back into the cargo tank compartment. In one embodiment, the purging apparatus is wholly contained on the cargo tank. In another embodiment, the apparatus is partly contained on the cargo loading facility and partly contained on the cargo tank.

대표청구항 ▼

An apparatus for purging residual liquid from a cargo tank external loading line of a cargo tank vehicle after a cargo tank compartment associated with the cargo tank external loading line has been loaded, which comprises: (a) means for closing off both an inlet end and an outlet end of the cargo ta

An apparatus for purging residual liquid from a cargo tank external loading line of a cargo tank vehicle after a cargo tank compartment associated with the cargo tank external loading line has been loaded, which comprises: (a) means for closing off both an inlet end and an outlet end of the cargo tank external loading line to provide a generally sealed chamber within the cargo tank external loading line; (b) a source of pressurized gas in flow communication with the generally sealed chamber within the cargo tank external loading line; (c) flow enabling means for permitting, when desired, flow of pressurized gas from the source of pressurized gas to the generally sealed chamber within the cargo tank external loading line; and (d) a purging conduit having an inlet end in flow communication with the generally sealed chamber within the cargo tank external loading line and an outlet end in flow communication with the cargo tank compartment such that during the purging operation the flow of pressurized gas from the source of pressurized gas to the generally sealed chamber within the cargo tank external loading line forces the residual liquid out of the cargo tank external loading line through the purging conduit and into the cargo tank compartment.