| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel cell system which can prevent water in a hot-water storage tank from being polluted in advance when a disaster such as house collapse occurs. <P>SOLUTION: A purge mechanism 70 and a drainage mechanism 80 are installed between a fuel cell 20 and the hot-water storage tank 15 where heat exchange is carried out by stack cooling water. The drainage mechanism 80 is equipped with a drain valve or the like, and exhausts stack cooling water from a piping 17 when there is a risk of its breakage such as by the house collapse. The purge mechanism 70 surely exhausts the stack cooling water from the piping 17 when there is a risk of its breakage due to such as the house collapse by flowing (purging) air through piping 17 where stack cooling water flows. <P>COPYRIGHT: (C)2009,JPO&INPIT |
