Under normal operating conditions of the storage tank, it serves as the main vaporized gas container of the storage tank (this situation applies to the main container with an open top) and supports the insulation layer of the main container;

In the case of leakage from the main container, store all liquid products and maintain structural airtightness, which can be exhausted, but it should be controlled (through the pressure relief system).

The annular space between the main container and the secondary container should not be greater than 2m.

Under normal operating conditions of the storage tank, it serves as the main vaporized gas container of the storage tank (this situation applies to the main container with an open top) and supports the insulation layer of the main container;

In the case of leakage from the main container, store all liquid products and maintain structural airtightness, which can be exhausted, but it should be controlled (through the pressure relief system).

The annular space between the main container and the secondary container should not be greater than 2m.