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LNG storage tank

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LNG Storage TankWith the great development of liquefied natural gas (LNG) industry in recent years, as a clean petrochemical energy, LNG is getting more and more extensive end-use fields because of its convenient transportation, flexible use, not subject to the constraints of the pipeline network, etc. The application of LNG in the transport industry has the advantages of safety, environmental protection, long vehicle mileage, and obvious environmental and economic benefits, etc.; under the background of the world's call for green environmental protection, energy saving and emission reduction, the expectation of using LNG as the fuel for vehicles is getting higher and higher. Under the background of the world's call for green environmental protection, energy saving and emission reduction, the expectation of using LNG as the fuel for automobiles is getting higher and higher. The state actively promotes the implementation of energy saving and emission reduction and the policy of replacing oil with gas, which effectively promotes the use and development of natural gas as an alternative fuel for transport.

Tank is a kind of high vacuum adiabatic container for storing LNG, and the main structure contains inner and outer tanks, with vacuum and adiabatic insulation in the middle. At present, the maximum working pressure of the inner liner is 1.59MPa, and the calculated pressure is taken as 2 times of the maximum working pressure. The outer wall of the inner liner is wrapped with a multi-layer insulation material consisting of glass fibre paper and polished aluminium foil. The multi-layer material has the characteristics of low thermal conductivity, high thermal insulation performance and light weight under high vacuum conditions. The sandwich is equipped with palladium oxide and molecular sieve to prolong the vacuum service life. The outer shell is designed to form a sandwich space with the inner liner, which is used to ensure that the inner liner reaches the best insulation effect, and the better the effect, the longer the LNG can be stored in the tank.

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