Korea Atomic Energy Research Institute

King Abdullah City for Atomic and Renewable Energy

Hyungi Yoon

Seok Koo Kim

Youngin Kim

Cheongbong Chang

Joohyung Moon

Hunsik Han

Youngmin Bae

Junewoo Kee

Minkyu Lee

Seungyeob Ryu

Soojai Shin

Hyunjun Cho

Juhyeon Yoon

Bonghyun Cho

The present invention relates to a prevention device for loss of coolant accident (LOCA) and a nuclear reactor having the same. The prevention device for LOCA includes a nozzle portion integrally formed in a reactor vessel and having a communication hole communicating with the inside of the reactor vessel, a nozzle finishing portion assembled to the nozzle portion and an injection line for injecting a fluid to the inside of the reactor vessel respectively on both sides thereof in a communicating manner, and a check valve mounting portion installed to be embedded inside the nozzle portion and having at least one check valve opened by flow such that the fluid is injected into the reactor vessel, wherein the check valve blocks outflow of a reactor coolant from the reactor vessel in case of failure of the injection line.

Prevention device for LOCA and nuclear reactor having the same

A safety injection device includes, a cooling water storage section accommodating cooling water injected into the reactor coolant system, a power producing section producing power with steam discharged from the reactor coolant system in case of an accident, a steam supply pipe transmitting steam discharged from the reactor coolant system to the power producing section, a steam discharge pipe discharging steam used to drive the power producing section and a safety injection line supplying cooling water accommodated in the cooling water storage section to the inside of the reactor coolant system. In addition, cooling water accommodated in the cooling water storage section is supplied to the inside of the reactor coolant system, based on the power produced by the power producing section, through a cooling water inlet pipe connecting the cooling water storage section and the power producing section.

Cooling water safety injection device powered by steam discharged during an accident and nuclear power plant having the same

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Sejong, South Korea

Hyungi Yoon