Author introduced the storage method of LPG and its selection, comparison was made for low temperature atmospheric tank with ambient temperature pressure tank, more detailed description was also made for design scheme of low temperature atmospheric storage equipment in aspects from design material selection, structure design and foundation design of storage tank etc.

But during the low temperature storage, rollover may be happened due to the disadvantageous temperature gradient, and it may cause serious danger.

Combining practical run, expatiates LPG low temperature storage technology by direct compressing refrigeration.

By modifing known based row image code technique and jiongtly using the proposed 8- 6 wavelet, an image compres-sion method with high quality,low storage, and low complexity is then proposed.