Research on the support structure of cryogenic large liquid hydrogen spherical tanks
A novel rod-type support structure for a spherical tank containing liquid hydrogen was devised.This structure incorporated a boom and a tie rod,which served to resist the effects of gravity and horizontal seismic forces,respectively.Addi-tionally,the boom and tie rod were capable of movement within a specified range,allowing them to accommodate the deformation of the spherical body due to cold shrinkage.Furthermore,the incorporation of a hollow rod-type support mechanism effectively minimised the area of heat leakage and reduced the overall heat leakage amount.The results of the finite element analysis demon-strate that the rod-type support structure exhibits a heat leakage of approximately 39.14 W,while the load-carrying capacity of the tie rod is enhanced by 22.46％.The rod-type support structure displays remarkable low heat transfer performance and me-chanical properties.
Liquid hydrogen storageBall tankRod support structureHeat leakageStresses
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