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一九七八年我厂尿素试生产期间,4D 12-55/220 CO_2压缩机的四级缓冲器及四级出口管经常振裂。最短的只能运转24小时,最长的也不过360小时。七八年八月至十月三个月试生产中就断裂十六次,成为我厂尿素正常生产的严重障碍。其原因是我厂CO_2压缩机四阶出口管线较长,弯头多,固定方法不当,缓冲器设计不够完善,管线气流脉动较大,引起级间设备及管线振动以致断裂。对此我们采取了如
In 1978, during the trial production of urea in our factory, the 4-stage 12-55 / 220 CO_2 compressor’s four-stage buffer and the four-stage outlet pipe were often shattered. The shortest run only 24 hours, the longest, but also 360 hours. In August 1978 to October three months of trial production on the break sixteen times, as a normal production of urea plant a serious obstacle. The reason is that the fourth-order export pipeline of CO_2 compressor in our plant is long, with many elbows and improper fixing methods. The design of the bumper is not perfect, and the pulsation of the pipeline air flow is relatively large, which causes the vibration of the interstage equipment and the pipeline to break. We have taken on this