The building of the nuclear power plant has a through hole for passing piping. A sealant is filled in the gap between the through hole and the pipe to secure the sealing property of the portion. When an earthquake occurs, relative displacement occurs in the through hole and the pipe. There is a concern that the seal material may be damaged if the relative displacement is large. Therefore, we have developed a seal structure with good displacement followability....
英字タイトル:
Development of seismic improvement seal structure for nuclear plant building

In nuclear power plants in Japan, seawater is used as the cooling water. The inner surface of piping for circulating the seawater to the cooling system of each facility is lined with polymeric materials such as rubber, polyethylene (PE) or epoxy resin to prevent corrosion caused by the seawater. In recent years, cases of deterioration caused by aging of the lining materials have occurred, such as cavitation erosion in high flow velocity sections, slurry abrasion, and cracking due to the deterioration of p...
英字タイトル:
Improvement in sea water system reliability by high durability lining material