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一、堵塞现象的出现我厂使用小制氧机已有40年的历史,在1984年和1986年先后上两套杭氧产 KFON－150/600型制氧机取代原苏式制氧机。在长期的使用过程中,经常发现CCl4液氧液面计因管路填塞而失效。当被迫采用反吹等方法时,收效又甚微。众所周知,液氧液面计是空分塔重要的安全装置之一,是空分行业操作调节的重要指标和依据。没有液面计这只“眼睛”,轻者靠高压来保持高液氧液面,维持短时间生产(而且易发生严重后果,我厂1984年就曾发生严重事故);重者需停车重新加热吹扫。这样,不仅水、电、汽消耗猛增,经济上造成浪费,而且影响了全厂生产。
First, the appearance of blockage I plant a small oxygen machine has 40 years of history, in 1984 and 1986 successively on the two sets of oxygen production KFON-150/600 oxygen generator to replace the original Soviet oxygen generator. In the long-term use of the process, it is often found that CCl4 liquid oxygen meter due to pipeline filling failure. When forced to use such methods as backflush, the effect is minimal. As we all know, liquid oxygen level gauge is one of the important safety devices in the air separation tower. It is an important indicator and basis for the operation adjustment of the air separation industry. There is no liquid meter this “eye”, the light by high pressure to maintain a high level of liquid oxygen to maintain a short period of production (and prone to serious consequences, I plant in 1984 had a serious accident); heavy parking should be reheated Purge. In this way, not only the water, electricity and steam consumption soared, resulting in economic waste, but also affected the entire plant production.