Assembly type full connecting liquid floating disc

Abstract

An assembly type full connecting liquid floating disc is disclosed. A floating device comprises a floating disc body, an annular support, first annular cushion blocks and a rail unit. The rail unit comprises a pair of rail pressing plates. The two ends of the rail pressing plates are fixed to the floating disc body through the cushion blocks. The support is supported on the upper portion of the floating disc body through a sliding support mechanism acting on the rail pressing plates. A seal device comprises a first seal film, a plurality of outer elastic plates and inner elastic plates which are arranged annularly. The first seal film is laid between the outer side face of the floating disc body and the tank wall. The inner end of the first seal film is fixed to the floating disc body. Theouter end of the first seal film is clamped by the outer elastic plates to form an elastic seal mechanism in sliding seal fit with the tank wall. An automatic compensation mechanism comprises a plurality of compensation units. Guide columns in the compensation units act on the outer sides of the upper portions of highly elastic pressing plates elastically through compression springs. The assemblytype full connecting liquid floating disc can conduct elastic automatic compensation along with floating of the floating disc and is in close contact with the tank wall all the time, the seal effectcan be improved significantly, and a static electrical conductivity device is free of potential safety hazards.

Description

technical field [0001] The invention relates to the technical field of oil storage equipment, in particular to an assembled fully liquid-contacted floating plate. Background technique [0002] Most of the domestic vertical cylindrical storage tanks use buoy-type floating discs, and the edge seals adopt tongue-shaped seals, capsule-type seal structures, and even use secondary seals. It is difficult to avoid volatilization of oil and gas in the oil and gas space. The application range of the tongue seal and bladder seal structure is limited. When the gap between the floating plate and the tank wall is large, oil and gas leakage will occur, and this type of structure insulates the floating plate and the tank wall. There is a large amount of static electricity, which poses a safety hazard. In China, steel floating plates are also used on cylindrical storage tanks, commonly known as iron floating tanks, which can fully contact the liquid surface, and there is no volatilization i...

AI Technical Summary

Problems solved by technology

[0002] Most of the domestic vertical cylindrical storage tanks use buoy-type floating discs, and the edge seals adopt tongue-shaped seals, capsule-type seal structures, and even use secondary seals. It is difficult to avoid volatilization of oil and gas in the oil and gas space. The scope of application of the tongue seal and bladder seal structure is limited. When the gap between the floating plate and the tank wall is large, oil and gas leakage will occur, and this type of structure insulates the floating plate and the tank wall. There is a lot of static electricity, which poses a safety hazard

Domestically, steel floating plates are also used on cylindrical storage tanks, commonly known as iron floating tanks, which can fully contact the liquid surface, and there is no volatilization in the tank, which is firm and safe. However, steel floating plates are heavy, easy to damage, and are not resistant to corrosion. High, there are hidden dangers such as weld corrosion, oil and gas leakage, chuck, sinking, etc.

[0003] In recent years, there have been fully liquid-wetted box-type floating discs and fully liquid-wetted honeycomb floating discs in China, which are made of aluminum, stainless steel and other materials. The disc fixes the box in the frame of the main beam and sub-beam, and floats on the liquid surface. It is light in weight, strong in buoyancy, and firm in structure. The elastic seal is better than the tongue seal and bladder seal, and it is fully wetted under normal conditions. Compared with the traditional floating disc, the floating disc has been greatly improved, but with the requirements of environmental governance, it can no longer meet the emission requirements of VOCs

There is a large oil and gas space in the edge seal of the existing fully wetted floating plate, and there is a gap between the sealing structure and the tank wall, and the floating plate will increase the gap on one side due to floating in actual application, making it difficult to fundamentally control the emission of VOCs

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