METHOD FOR AFTERBURNING NUCLEAR-FUEL RESIDUE OF NUCLEAR-POWERED SUBMARINE FOR HEATING INSTALLATIONS OR ESTABLISHMENTS THROUGH SHIPBOARD HEATER UNIT; SHIPBOARD HEATER UNIT Russian patent published in 2002 - IPC

FIELD: nuclear power engineering; thermal engineering; heating large naval bases and other establishments. SUBSTANCE: method includes heating of delivery water. Heating is effected by hot water taken from steam-generating plant mounted on board ship or nuclear-powered submarine using energy of more completely burned nuclear fuel under steady state running conditions of reactor by end of its core life-time and before ship or submarine decommissioning. Delivery water pressure is continuously maintained above throttled steam pressure to prevent steam ingress into delivery water. Shipboard heater unit has throttling devices, regenerative heat exchanger sections, pump or pump with adjustable-pitch screw, remotely controlled valves, set of sensors and alarms, and automatic-control system. Throttling device and automatic control system incorporating safety valves are mounted at steam entrance to heat exchanger sections. They function to maintain steam pressure below delivery water pressure. EFFECT: enhanced efficiency of nuclear fuel recovery for heating naval bases and emergency heating of settlements with reactor running under steady state conditions. 2 cl, 1 dwg