Super-amphiphobic surface floating disc edge sealing device for external floating roof storage tank and using method

Abstract

The invention discloses a super-amphiphobic surface floating disc edge sealing device for an external floating roof storage tank and a using method and belongs to the technical field of oil and gas storage and transportation. The super-amphiphobic surface floating disc edge sealing device comprises a polyurethane elastic sponge sealing mechanism and a compression mechanism. The outer side of elastic sponge is wrapped with a rubber wrapping tape coated with a super-amphiphobic layer, that is, a layer of stable gas film is arranged on the outer side of the elastic sponge, and the sealing capacity is enhanced; and a labyrinth groove is formed in the portion, close to the middle of the tank wall, of the elastic sponge, and the labyrinth sealing function is played; a spring is arranged in the compression mechanism, and the deformation of the tank wall can be effectively solved. According to the super-amphiphobic surface floating disc edge sealing device for the external floating roof storage tank and the using method, through the floating disc edge sealing device adopting the super-amphiphobic surface, the labyrinth sealing and the compression mechanism are adopted at the same time, theproblem of oil and gas leakage caused by serious deformation of the tank wall of the storage tank can be effectively solved, the emission of VOCs gas in the storage tank is reduced, the atmospheric environment is protected, meanwhile, the oil and gas leakage of a sealing ring is reduced, and the safe operation level of the storage tank is increased.

Description

technical field [0001] The invention belongs to the technical field of oil and gas storage and transportation, and in particular relates to a floating disk edge sealing device with a superamphiphobic surface for an external floating roof storage tank and a use method thereof. Background technique [0002] At present, the edge sealing performance of external floating roof storage tanks is generally poor, VOCs gas emissions generally exceed the standard, and the tank wall of long-term service storage tanks has deformation problems, the edge of the floating plate is not tightly sealed, and oil and gas leakage is serious. Therefore, it is necessary to develop a new type of floating plate edge sealing device to reduce the emission of VOCs gas in the storage tank, protect the atmospheric environment, reduce the oil and gas leakage of the sealing ring, and improve the safe operation level of the storage tank. [0003] In the prior art, the research on sealing devices mainly include...

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Problems solved by technology

[0005] Aiming at the defects in the above-mentioned prior art, the present invention proposes a floating disk edge sealing device with a superamphiphobic surface for external floating roof storage tanks. The retractable compression mechanism can effectively deal with the problem of oil and gas leakage caused by the serious deformation of the tank wall, reduce the emission of VOCs gas in the storage tank, protect the atmospheric environment, reduce the oil and gas leakage of the sealing ring, and improve the safe operation level of the storage tank

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