摘要
Abstract
The heat from the outside would inevitably introduce into the cryogenic tank ,when the cryogen-ic tank was influenced by the environment .Consequently , the economic benefit is directly related to the rate of evaporation after the tanks are put into production .The important indicators ,such as fullness rate , thermal insulation thickness ,daily evaporation rate and so on ,are given according to the industry standard JB/T 9077-1999 “Conventional Powder Insulation Tanks”.The affects of these indicators on heat trans-fer and the structure design of the cryogenic tank were analyzed through computer arithmetics .The provi-sion of specification for thermal insulation thickness was deeply analyzed;meanwhile , the problems that exist in the specified value of fullness rate were also discussed ,and the design idea about how to enhance the cost-benefit ratio of the cryogenic tank was proposed .关键词
低温平底贮槽/传热分析/绝热层厚度/日蒸发率Key words
the flat bottom cryogenic tanks/heat transfer analysis/thermal insulation thickness/daily evaporation rate分类
机械制造
