Single-deck floating roof of a large-volume storage tank, particularly for crude oil products

摘要

It is to be separated from each other by room by narrow circumferential ring (1) the present invention relates to a kind of large volume storage tank of single-deck floating roof, especially crude oil products, and deck circular metal plate (2). The welding of radially arranged semisolid U-shaped reinforcing ribs (3) box-type section passes through the top of its open end, with the deck circular metal plate (2). The rib (3) divides circular metal plate (2) and arrives each spherical sector (4). Each spherical sector (4) is equipped with emergency overflow (5) and rainwater closure (6), and wherein middle part is equipped with rain collecting device (7). The semisolid U-shaped reinforcing ribs (3) make towards sloped roof rain collecting device (7), meanwhile, they emit load from adjacent spherical sector (4) to peripheral ring band (1).