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+86 512-8166609629，Key points for manufacturing requirements of LNG storage tank - Doer equipment
Classification：Forum PublishTime：2019-08-10 13:47:30
Key points of manufacturing requirements for LNG storage tanks.
LNG storage tank is a cryogenic liquid storage tank, which has strict requirements in manufacturing and production.
1. Materials
The inner tank wall is required to be resistant to low temperature, and 9Ni steel or aluminum alloy and other materials are generally selected.
2. Thermal insulation measures
Since the maximum temperature difference inside and outside the tank can reach 200 ℃, in order to keep the temperature inside the tank at - 160 ℃, the tank body must have good cold insulation performance, and high-performance cold insulation materials shall be filled between the inner tank and the outer tank. The cold insulation material at the tank bottom shall also have sufficient pressure bearing performance.
3. Seismic performance
The seismic requirement of general buildings is to crack without falling under the specified seismic load. In order to ensure the safety of the storage tank under accidental load, the storage tank must have good seismic performance. For LNG storage tanks, it is required not to fall or crack under the specified seismic load.
Therefore, the selected construction site shall generally avoid the seismic fracture zone. Before construction, the seismic test shall be conducted on the storage tank to analyze the structural performance of the storage tank under dynamic conditions, so as to ensure that the tank will not be damaged under a given seismic intensity.
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