Shanghai Nuclear Engineering Research & Design Institute

Xiankang Dong

Yu Chen

Yong Wang

Cheng Ye

Jinquan Yan

Mingguang Zheng

Guoxing Gu

Wei Shi

He Sun

Honghui Ge

Jian Qiu

Libing Zhu

Yuanwei Ye

Yun Ling

Xia Su

Liuhua Shen

Fuzu Miao

Zufeng Xia

A passive cooling system for a reactor core of a large-scale pressurized water reactor nuclear power plant includes a shield building having an outer wall and a through air inlet arranged on an upper part of the outer wall, a water tank arranged at an upper part of the shield building, a cooling water distribution plate arranged above a top of a containment within the shield building, a spray pipe arranged at an inside of the top of the shield building and having a water inlet end and a water outlet end, wherein the water inlet end is connected to a bottom of the water tank and the water outlet end is extended to be above the cooling water distribution plate, and an air deflector arranged between the shield building and the containment and having an upper end connected to an inside of the top of the shield building.

Completely passive cooling system for reactor core after accident of large-scale pressurized water reactor nuclear power plant

A heat pipe based passive residual heat removal system for a spent fuel pool (). Partitions () are arranged around an inside of the spent fuel pool. Evaporation-end heat pipes () are arranged between the outside of the partitions and an inner wail of the pool. The evaporation-end heat pipes have outlets that extend beyond the pool and are connected to an Inlet of an ascending pipe (), and have inlets connected to an outlet of a descending pipe (). Condensation-end heat pipes () have inlets connected to an outlet of the ascending pipe, and have outlets connected to an inlet of the descending pipe. The heat pipes cool the spent fuel pool. A heat exchange by phase change of working medium in the heat pipe leads to heat exchange of low temperature difference and high efficiency, relying on density difference for natural circulation drive.

Heat pipe based passive residual heat removal system for spent fuel pool

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Shanghai, China

Xiankang Dong