SYSTEM TO COOL DOWN NUCLEAR CHANNEL-TYPE REACTOR Russian patent published in 2013 - IPC G21C15/18 

FIELD: power engineering.

SUBSTANCE: system to cool down a nuclear channel-type reactor includes reactor process channels, drum separators, main circulation pumps, suction, discharge and distributing group headers, stop and control valves, gate valves, flow meters, headers for blowdown of dead zones in distributing group headers, an emergency tank, feed pumps, a line of blowdown water, aftercoolers of blowdown, cooling pumps, regenerators, bypass treatment, connected by pipelines. Between headers of blowdown of dead zones of distributing group headers and process channels there are maintenance headers connected by pipelines, and the emergency tank by means of an additional pipeline is connected to the blowdown water line.

EFFECT: maintenance of safe condition of a reactor core, possibility to replace process channels and repair works on suction and discharge parts of equipment of a circuit of multiple forced circulation without stopping in the process of reactor cooldown, reduced time of reactor outage during scheduled shutdowns for repair.

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