Classification and role of storage tanks

(2) momentless top storage tank (suspended chain momentless storage tank). Momentless top tank is based on the theory of suspension chain line, manufactured from thin steel plate. The longitudinal section of the top plate is suspended chain curve shape. Due to this shape of the tank top plate is only subject to tension and does not produce bending moment, so called moment-free top tank.

(3) floating roof storage tank. Floating-top storage tank is divided into floating-top storage tank, internal floating-top storage tank (with cover internal floating-top storage tank).
1) floating roof storage tank. The floating roof of the floating roof tank is a floating roof floating on the surface of the storage liquid, with the input and output of liquid storage and floating up and down, there is an annular space between the floating roof and the tank wall, the annular space has a sealing device, so that the liquid in the tank floating up and down when the roof is isolated from the atmosphere, thus greatly reducing
The storage liquid in the storage process of evaporation loss. The use of floating roof tanks for oil storage can reduce oil losses by about 80% compared to fixed roof tanks.
2) Inner floating roof storage tank. Inner floating roof tank is a floating roof tank with a roof, but also a new type of storage tank with a combination of vault and floating roof tank. The top of the internal floating roof tank is
The combination of vaulted roof and floating roof, the external is vaulted, the internal is floating roof. The internal floating roof tank has unique advantages: First, compared with the floating roof tank, because there is a fixed top, can effectively prevent wind, sand, rain, water, water, water, water, water.
effectively prevent the intrusion of wind, sand, rain, snow or dust, and absolutely ensure the quality of the stored liquid. At the same time, the inner floating disk floats on the liquid surface, so that the liquid has no vapor space, reducing
evaporation loss by 85%~96%; reduce air pollution, reduce the risk of fire and explosion, easy to dry to ensure the quality of liquid storage, especially suitable for dry storage of advanced gasoline and jet fuel
and toxic petrochemical products; by the dry liquid surface without gas space, so reduce the corrosion of the tank wall tank roof, thus extending the service life of the storage tank, one is in the seal
Under the same circumstances, compared with the floating roof can further reduce evaporation losses. Disadvantages of internal floating roof tank: compared with the vaulted roof tank, steel consumption is relatively high, high construction requirements; compared with the floating roof tank, maintenance inconvenience (sealed structure), the tank is not easy to large-scale, currently generally not more than 10,000 cubic meters
Classification by size: more than 100m for large storage tanks, mostly vertical tanks; 100m for small tanks, mostly horizontal
type storage tank. Steel sealed containers used for storage of liquids or gases are steel storage tanks, steel storage tank project
Is the petroleum, chemical, grain and oil, food, fire, transportation, metallurgy, national defense and other industries essential and
Important infrastructure, our economic life is always inseparable from the large and small steel storage tanks, steel
Storage tanks in the national economic development of the important role is irreplaceable.
According to the cost classification: now the most superior rotomolded tanks, rotomolded tanks can be divided into steel-lined tanks, all-plastic tanks two major systems.

They include vertical, horizontal, transport, mixing and many other varieties.