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\r \rHZA<\/span><\/span>系列制氮机是根据变压吸附原理，采用高品质的碳分子筛作为吸附剂，在一定的压力下，从压缩空气中制取氮气。<\/span><\/span>\r<\/p>\r \r <\/span>\r<\/p>\r \r进气<\/span>:<\/span><\/span><\/span><\/b>空压机把一定压力的空气压进输送管道<\/span>,<\/span><\/span>再通过压缩空气净化系统去除其中的水分、油分和灰尘等杂质，到达空气缓冲罐<\/span>,<\/span><\/span>经空气缓冲罐输送到两只吸附塔中。<\/span><\/span>\r<\/p>\r \r <\/span>\r<\/p>\r \r吸附<\/span>:<\/span><\/span><\/span><\/b>当经过储气罐中的空气进入吸附塔中<\/span>,<\/span><\/span>在压力作用下<\/span>,<\/span><\/span>氧气、二氧化碳被迅速吸附<\/span>. <\/span><\/span>在吸附未达到平衡时，氮在气相中被富集起来，形成成品氮气。然后减压至常压，吸附剂脱附所吸附的氧气等其它杂质，实现再生。一塔吸附产氮，另一塔脱附再生<\/span>. <\/span><\/span>使两塔交替循环工作，以实现连续生产高品质氮气之目的。<\/span><\/span>\r<\/p>\r \r <\/span>\r<\/p>\r \r出气<\/span>:<\/span><\/span><\/span><\/b>当吸附过程进行到**时刻时<\/span>(<\/span><\/span>氮气对氧气的吸附最小<\/span>),<\/span><\/span>打开出气阀门<\/span>,<\/span><\/span>输出成品氮气到氮气缓冲罐。<\/span><\/span>\r<\/p>\r \r <\/span>\r<\/p>\r \r均压：<\/span><\/span><\/b>排气过程完成后<\/span>,<\/span><\/span>塔内尚有一定压力纯度的氮气混合气<\/span>,<\/span><\/span>如果排掉非常可惜<\/span>,<\/span><\/span>于是直接将其排入另外一个吸附塔一起和接下来冲入的空气一起进行再吸附<\/span>,<\/span><\/span>这个过程因为到两塔压力相等时便结束<\/span>,<\/span><\/span>于是称为均压。<\/span><\/span>\r<\/p>\r \r <\/span>\r<\/p>\r \r排气：<\/span><\/span><\/b>均压完成后<\/span>,<\/span><\/span>需要将塔内被分子筛吸附的气体释放出去为下一次吸附作准备<\/span>,<\/span><\/span>程序自动将打开排气阀<\/span>,<\/span><\/span>使塔内压力回到初始状态<\/span>,<\/span><\/span>并把分子筛重新具备吸附新空气的能力。<\/span><\/span>\r<\/p>\r \r <\/span>\r<\/p>\r <\/span><\/div>
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