小氮肥工业生产过程中最关键的设备是氨合成塔内件,随着科学技术的日新月异,合成塔内件的研究也在不断地改进,内件的功能也在不断地得到完善。目前,湖南省化肥公司研制的双绝热、强力内冷、分流三段式内件,简称“ⅢJ型”内件和贵州远明化工节能设计研究所研制的“YD型”冷激式内件已被 The most important equipment in the process of small nitrogenous fertilizer production is the ammonia synthesis tower internals. With the rapid progress of science and technology, the research of the synthesis tower internals has been continuously improved, and the function of internals has also been continuously improved. At present, Hunan Province Fertilizer Company developed double insulation, strong internal cooling, split three-stage internal parts, referred to as “Ⅲ J-type” pieces and Guizhou Yuanming Chemical Energy Design Institute developed the “YD-type” Be