FACILITY TO STORE AND FEED CRYOGENIC PRODUCTS Russian patent published in 2001 - IPC

FIELD: pipe-line transport. SUBSTANCE: facility to store and feed cryogenic products has heat-insulated tank anchored in vacuum-tight enclosure, filling and drain pipe-lines with shut-off valves to which in sections between enclosure and valves connection pipe-line carrying heat exchanger-evaporator and stop valves is linked. Tapping pipe-line is linked to connection pipe-line downstream from heat exchanger-evaporator. Tunnel tube anchored on bottom and dome of tank and perforated in these zones is placed inside tank uniaxially to its vertical axis. Total area of perforated holes in zone of dome is not less than area of section of drain pipe-line and in zone of bottom it is not less than area of section of tunnel pipe-line. Section of drain pipe-line located inside tank is positioned in plane of tunnel pipe-line and comes in the form of vertical loop whose open end is located in zone of dome of tank. Section of vertical loop located in liquid with specified initial degree of filling of tank is fitted with fins. EFFECT: prevention of pressure drop in tank beneath working level in process of delivery of cryogenic product from it and minimized loss of cryogenic product during its storage in tank with open drainage. 1 dwg