我厂烷基化装置丙烷泵自1966年开工使用以来,由于密封泄漏严重,直接影响生产。为此,自1971年开始对该装置丙烷泵进行了机械密封试验工作。开始由于我们对丙烷泵的介质了解不太深刻,对机械密封也缺乏正确的分析方法,没有抓住主要矛盾,片面地采用“头痛医头,脚痛医脚”的办法,结果都失败了。在未进行试验以前,丙烷泵运转周期最高历史记录为12～20天,有时一天甚至拆装两三次。在整个试验过程中,共进行了十六次试验,反复 Since the propane pump of our plant alkylation plant has been in operation since 1966, it has a direct impact on production due to serious seal leakage. To this end, since 1971 the device propane pump mechanical seal test. Since the beginning of our understanding of the medium of propane pump is not too deep, the lack of proper analysis of the mechanical seal, did not grasp the main contradiction, one-sided use of “headaches, feet pain,” the results failed. Before the test was carried out, the highest history of propane pump cycle was 12 to 20 days, sometimes even one or two times a day. During the entire experiment, a total of 16 tests were conducted repeatedly