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Cooling seawater flows in the condenser coils
2011-5-22The damage to the pipes in a condenser coils of the steam turbine was found after filtration of sea water in a reactor of the Hamaoka nuclear power plant in Shizuoka Prefecture, the operator of Chubu Electric Power Co., said.
The utility will investigate the causes of damage to pipes, measuring 3 cm in diameter, through which sea water coolant flowing through the condenser coils, can be broken.
According to the utility, recirculation piping to adjust the amount of water inside the reactor is placed next to the damaged pipe and a metal cover measuring about 20 cm in diameter and weighs about 3.5 kg were found to have fallen in the area.
Chubu Electric lids suspect may have hit the tubes, when he fell, and examine other tubes in the condenser coils.
About 5 tons of sea water can be introduced into the No. 5 reactor at the nuclear plant, after the discovery of approximately 400 tons of seawater in the condenser coils, while work was under way last Sunday at the reactor in a state of "cold shutdown, according to the utility.
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