| 主权项 |
1. An emission controlled floating roof storage tank apparatus comprising:
a floating roof including:
a plurality of leg sleeves distributed in the floating roof of the tank,a side or sides, anda bottom, and a vapor emission control system including:
a plurality of vapor emission control apparatuses, each vapor emission control apparatus comprises:
a top compression plate including an top plate aperture therethrough,a bottom compression plate including a bottom plate aperture therethrough,a compressible member interposed therebetween and including a compressible member aperture therethrough, anda compression assembly for compressing the compressible member, where each sleeve includes a vapor emission control apparatus inserted into a top of each sleeve and the compression assembly compresses the compressible member to produce a gas tight seal between the compressible member and an inner surface of each sleeve when the tank is in service and where the compression assembly decompresses the compressible member, when the vapor emission control apparatuses need to be removed from the sleeves and where the vapor emission control system reduces, substantially eliminates or completely eliminates volatile organic compound (VOC) emissions from the tank through the leg sleeves. |
