METHOD FOR NUCLEAR ENERGY STAND THERMAL TREATMENT Russian patent published in 1997 - IPC

FIELD: nuclear energy engineering. SUBSTANCE: method includes nuclear energy stand in evacuated vessel heating inside by supplementary heat source to provide positive gradient of temperature field between core and stand source. Sassing products are pumping out before cooldown processing. The same time supplementary heat source energy transfer is growing up and stand energy debit is changing down but such a manner that reactor core temperature exceeds working temperature by 5 - 10 deg C until pumping volume gassing will be finished. Then operating heat condition is setting on by heat power output of both sources reciprocal changing and achieved condition is holding up to gas static pressure in pumping out volumes will be less than 0,1 Pa so after this cooldown operating can be setting on. EFFECT: more effective thermal treatment of nuclear energy stand.