The purpose of the storage tank. Storage tanks are essential infrastructure for storing various pressurized liquids or gases in industries such as petroleum, chemical, grain and oil, food, fire protection, transportation, metallurgy, and national defense.

Classification. Due to differences in storage media, working pressure, and operating temperature, there are also various forms of storage tanks.

Classified by location, it can be divided into aboveground storage tanks, underground storage tanks, semi underground storage tanks, underwater storage tanks, etc.

According to the classification of oil products, they can be divided into crude oil storage tanks, fuel oil storage tanks, lubricating oil storage tanks, edible oil storage tanks, and fire water tanks.

According to different purposes, it can be divided into production oil tanks, storage oil tanks, etc.

Classified by form, it can be divided into vertical oil storage tanks, horizontal oil storage tanks, etc.

According to structural classification, it can be divided into fixed roof storage tanks, floating roof storage tanks, spherical storage tanks, etc.

According to different sizes. Large storage tanks with a capacity of over 10m ³ are mostly horizontal tanks; Small storage tanks below 10m ³ are mostly vertical tanks.