各合成氨厂液氨储罐用什么保温的？ 液氨球罐以及所有液态气体罐正确的隔热材料是聚氨酯泡沫，经试验研究证实这种材料在低温下非常稳定，其具有的隔热性能及强度都不受低温的影响。 而其他传统的隔热材料在低温下会变脆。 以上信息供参考。原文如下： basf researchers have discovered an interesting application which makes use of the low-temperature stability of basotect®, the melamine resin foam, which has not been previously investigated. initial tests have shown that steel tanks filled with liquefied natural gas (lng) at a temperature of approximately -160°c can be effectively insulated with basotect® for prolonged periods. experts agree that the need for lng transport systems will increase steadily over the next few years, and as the technology currently in use for transporting liquid gas is outdated, this material could be of tremendous advantage. the high degree of stability of the foam at low temperatures has not yet been technically exploited. useful combination: elasticity and stability at low temperatures in laboratory tests basotect® retains its properties even at temperatures of around -200°c. for this reason using the foam with its combined characteristics to insulate lng tanks has a number of advantages: the high degree of elasticity and the thermal insulation capacity of the foam remain unaffected by very low temperatures, in contrast to conventional foam insulation, which becomes brittle when exposed to such cold conditions. "a combination of basotect® and other foams is also conceivable. if conventional foam with its specific thermal insulation and processability is protected against the effects of the low temperatures of the liquid gas by a layer of basotect®, brittleness can be prevented," commented christof möck, who is in charge of global basotect® business.查看更多
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