Full-size primary sealing device and method for edge of floating disc of outer floating roof storage tank

• Main Authors: ZHANG YUPING, MA KAILIANG, JIANG XIU, GUAN XIAORUI, TAO BIN, CHENG QINGLI
• Format: Patent
• Language: Chinese; English
• Published: 15.11.2019
• Subjects: ACCESSORIES, CLOSURES, OR FITTINGS THEREFOR; CONTAINERS FOR STORAGE OR TRANSPORT OF ARTICLES OR MATERIALS,e.g. BAGS, BARRELS, BOTTLES, BOXES, CANS, CARTONS, CRATES,DRUMS, JARS, TANKS, HOPPERS, FORWARDING CONTAINERS; CONVEYING; HANDLING THIN OR FILAMENTARY MATERIAL; PACKAGES; PACKAGING ELEMENTS; PACKING; PERFORMING OPERATIONS; STORING; TRANSPORTING

The invention relates to a full-size primary sealing device and method for the edge of a floating disc of an outer floating roof storage tank, and mainly solves the problems that in the prior art, thesealing effect is not good, an oil gas space exists in an edge gap, and a lightning stroke discharge point exists in a sealing structure. The full-size primary sealing device for the edge of the floating disc of the outer floating roof storage tank comprises a tank wall, a floating disc edge plate, a supporting plate, a rubber wrapping tape and sponge, wherein the side, close to the tank wall, ofthe rubber wrapping tape is fixed on the tank wall, the rubber wrapping tape in contact with the tank wall is provided with horizontal sawteeth, and the side, close to the floating disc, of the rubber wrapping tape is tightly attached to the floating disc edge plate; and the supporting plate is arranged inside the rubber wrapping tape, the supporting plate presses the rubber wrapping tape on thefloating disc edge plate, a