Rupture disc type emergency floating device and mounting method thereof

The invention relates to a rupture disk type emergency floating device and a mounting method thereof. The rupture disk type emergency floating device comprises a pressure-resistant shell and a non-pressure-resistant shell, an emergency floating device is mounted outside the pressure-resistant shell positioned at a bow through a spaced hanging bracket, and the bottom of the emergency floating device is tangent to the non-pressure-resistant shell; the emergency floating device comprises a shell, the section of the shell is of a circular ring structure, an opening is formed in the bottom of the shell, a pressing base body is installed at the opening, the shell and the pressing base body form a complete ballast wrapping face, and ballasts are distributed in the shell; and a supporting filter screen is installed at the bottom of the pressing base body, the two ends of the supporting filter screen are also installed at the opening, a rupture disk is further installed at the bottom of the opening of the outer shell,