| 摘要 |
The present invention relates to a passive secondary condensation system for a nuclear power plant. More specifically, the system includes: a steam supply pipe which is branched from a main steam pipe for transferring steam generated by a steam generator to a turbine; a passive condensation cooling tank which is connected to the steam supply pipe, receives steam from the steam supply pipe in case a nuclear reactor malfunctions, and condenses the received steam; a condensation water collection pipe which is connected to the passive condensation cooling tank, receives condensed cooling water from the passive condensation cooling tank, and supplies the condensed cooling water to a main water supply pipe; and the main water supply pipe which is connected to the condensation water collection pipe, receives the condensed cooling water from the condensation water collection pipe, and supplies the condensed cooling water to the steam generator. The passive condensation cooling tank includes: a condenser which condenses the steam supplied from the steam supply pipe; and a cooling water circulation member which circulates the cooling water filled inside the passive condensation cooling tank. By separately installing a plurality of cooling water circulation members inside the passive condensation cooling tank into which the steam generated by the steam generator flows in case the nuclear reactor malfunctions, the present invention is able to circulate the entire volume of the cooling water, not just part of the cooling water, filled inside the passive condensation cooling tank, thereby significantly improving the cooling efficiency of the cooling water flowing in from the steam generator. |
