SYSTEM FOR EMERGENCY COOLING OF REASEARCH NUCLEAR REACTOR

摘要

The invention relates to nuclear technology. The aim of the invention is to increase the operational safety of the core by reducing the amplitude of temperature fluctuations of the fuel elements when removing the residual energy release in the emergency cooling mode and reducing the tank volume by increasing the uniformity of coolant flow through the reactor core during the cooling process. The system comprises an emergency cooling tank 1 located below the coolant level in the pool 2 of the reactor. The lower part of the tank 1 is connected by pipeline 5 to the sub-zone space 7 formed by the dividing wall 9 and the bottom of the pool 2 of the reactor, and the upper to the space above the level of the coolant in the pool by the breathing nozzle 3. In addition, the upper part of the emergency cooling tank 1 is connected by an additional pipeline 4 with subzone space 7, and on the pipeline 5 installed flow limiter 6. 2 Il.