小化肥厂碳化车间氨水泵的泄漏是一个带普遍性的问题。我厂氨水泵的密封原来都用填料密封。这种填料密封不仅泄漏量大,污染严重,而且消耗指标高,要经常检修,劳动强度大。为了使氨水泵的轴封能满足生产要求,最近几年来,在合肥通用机械研究所帮助下,我厂将BA型和GC型二种泵的填料密封改成机械密封,收到了显著效果。这种机械密封泄漏量极少,使用寿命长,一般都在半年以上。机械密封在我厂氨水泵上使用成功以后,得到 Leakage of ammonia pump in the carbonization workshop of a small fertilizer plant is a common problem. Ammonia pump factory sealed with the original packing. This packing seal not only the amount of leakage, serious pollution, and high consumption index, to be frequently overhauled, labor-intensive. In order to make the ammonia pump shaft seal to meet the production requirements, in recent years, with the help of Hefei General Machinery Research Institute, I plant BA type and GC type two pump packing seal into a mechanical seal, received a significant effect. This mechanical seal leakage is minimal, long life, generally more than six months. Mechanical seal ammonia pump in our factory after the success of use, get