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在合成氨生产中,借助冰冻机循环制冷,即可满足工艺过程中自身冷冻用氨,又可使产品氨和碳化制备碳化氨水用氨得到平衡。正常的冰冻机加氨操作,应维持加氨总管压力0.8～1.OMPa,由用氨岗位以减压阀调节。但当夏季高温或用氨紧张时,往往出现冰机操作工采用卡1#冰机1#贮槽出口或液氨2#贮槽出口加氨阀门来控制,使加氨管的压力仅维持0.3～0.5MPa左右,有时甚至仅0.2MPa,这种操作方法是否能提高合成氨的制冷量呢?
In the ammonia production, with the freezer cycle refrigeration, you can meet the process of self-freezing ammonia, but also make the product of ammonia and carbonization of ammonia carbonization ammonia to be balanced. Normal freezing machine plus ammonia operation, should maintain the ammonia manifold pressure 0.8 ~ 1.OMPa, with the ammonia valve to regulate the position. However, when the summer heat or ammonia tension, ice machine operators often appear stuck 1 # 1 # ice machine tank outlet or liquid ammonia 2 # tank outlet plus ammonia valve to control, so that the pressure of the ammonia tube is maintained only 0.3 ~ 0.5MPa or so, and sometimes even only 0.2MPa, this method of operation can increase the cooling capacity of ammonia?