What are the common structures of LNG storage tanks?

The commonly used structures of LNG storage tanks are: vertical LNG storage tanks, horizontal LNG storage tanks, vertical composite tanks and atmospheric storage tanks.

Vertical LNG storage tank:
The volume is 50 cubic meters, 100 cubic meters, 150 cubic meters, and 200 cubic meters.

Horizontal LNG storage tank:
The volume is 60 cubic meters and 100 cubic meters.

Vertical child-mother tank:
The sub-tank refers to the inner tank composed of multiple sub-tanks in parallel to meet the large-capacity storage requirements. The multiple sub-tanks are assembled in a large outer tank in parallel. The number of sub-tanks is 3~7, generally not more than 12. The volume of the single sub-tank should not be too large, and its volume is usually between 100 and 150 cubic meters, with a maximum of 250 cubic meters. Commonly there are 1000 cubic meters, 1750 cubic meters, and 2000 cubic meters.

Atmospheric storage tank:
There are large and medium-sized atmospheric LNG storage tanks and extra-large LNG atmospheric storage tanks.