如何利用HTFS+计算套管式换热器？ 没用过double pipe，不过根据help中的解释：double pipe exchangers consist of a long, small diameter, shell, with a single tube in it. the tube usually has longitudinal fins extending to the shell, to give extra heat transfer area. double pipe exchangers often have a hairpin inner tube, with a separate shell on each leg. double pipe应该就是套管式换热器查看更多
那位高人能帮忙翻译下摘要？ 首先中文摘要说得就不清楚。到底那些技术革新是要实施还是已经实施。然后尿素生产似乎没有碳铵吧，是否为甲铵？（不太懂化工，猜得） abstract for a long time, the urea production in our plant has been under high consumption figures which are quite a little far from the level of the same industry. advanced technical improvements with energy saving and consumption reduction, including using ammonium carbonate liquid circulation as dynamic medium and using high efficiency double-suction hydraulic ejector to replace mp steam in former design for vacuum extraction, have been (are to be) implemented to reduce the mp steam consumption for 1st and 2nd array evaporative ejection pumps and ammonia consumption for tail gas of 1st array evaporative surface condenser and so as to reduce material loss and protect environment. key words: high consumption figures, energy saving and consumption reduction, high efficiency double-suction hydraulic ejector [ ]查看更多
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