Horizontal Storage Tank

Definition of Horizontal Storage Tank
Horizontal storage tanks are containers for storing oil products, serving as the main equipment in oil depots. They are suitable for storing fuel oils and various petrochemical raw materials commonly used in industrial and civil facilities. Stainless steel tanks can be categorized into metallic horizontal tanks and non-metallic horizontal tanks based on material; into underground horizontal tanks, semi-underground horizontal tanks, and above-ground horizontal tanks based on location; into vertical and horizontal installations based on installation type; and into cylindrical, box-shaped, and spherical shapes based on form.
Horizontal stainless steel storage tanks are easy to store. Pressure: Atmospheric pressure; Temperature: -25℃ to 180℃; Medium: Fuel oil (petrochemical raw materials, etc.)
Horizontal stainless steel storage tank construction must be stringent.

By application
a. Aboveground Horizontal Storage Tanks - Aboveground horizontal storage tanks refer to horizontal tanks whose foundation is higher than or equal to the adjacent area's datum elevation, or horizontal tanks where the burial depth is less than half of their own height. These aboveground horizontal storage tanks are a common type in oil refining enterprises, known for their ease of construction, management, and maintenance. However, they have a high evaporation loss and pose a significant fire risk.
b. Underground horizontal storage tanks refer to horizontal tanks where the liquid level at the highest point is 0.2 meters below the adjacent low elevation, and the thickness of the soil covering the tank top is not less than 0.5 meters. These horizontal tanks have low loss rates and a reduced risk of fire.
c. Semi-submerged horizontal storage tank refers to a horizontal storage tank where the buried depth exceeds half of the tank's height, with the liquid level at the top of the tank being lower than the adjacent area's benchmark level and not exceeding 2 meters.
Common metal horizontal storage tanks come in shapes such as vertical cylindrical, horizontal cylindrical, and spherical. Horizontal cylindrical tanks are further categorized based on their roof structures, including truss roof tanks, momentless roof tanks, beam-column roof tanks, dome tanks, jacketed tanks, and floating roof tanks, with dome and floating roof tanks being commonly used. The dome tank has a simple structure and is often used for storing crude oil, finished oil, and aromatic products. Floating roof tanks are divided into internal floating roof and external floating roof types, with a steel floating roof floating on the oil surface and moving with the oil level. The floating roof not only reduces oil consumption but also diminishes the risk of fire and atmospheric pollution.
Especially for internal floating roof tanks, the evaporation loss is minimal, which reduces oxidation of the oil by air, ensuring the quality of stored oil and is beneficial for fire safety. Currently, internal floating roof tanks are widely used domestically and internationally for storing volatile light oils and are a type of stainless steel storage tank in use.