我厂引进的加氢裂化装置所配备的循环气离心压缩机(型号 ZBF7-4)是美国克拉克公司设计,日本三菱重工业公司制造的系列产品,该机设计操作参数见表1。染,当作酸性废油处理掉。表2是浮环与转轴之间的间隙、密封油压力以及消耗密封油量的设计数据。压缩机经过二年多的运转后,浮环磨损,与轴的间隙增大,密封油耗量一天达200升。如图1所示平衡盘的内侧承受压缩机出口压力,平衡盘外侧 D 处用平衡管连到低压端,使压缩机进出口两端密封的内侧压力相 The recycle gas centrifugal compressor (model ZBF7-4) equipped with the hydrocracking unit introduced by our factory is a series of products designed by Clarke Company of USA and manufactured by Japan Mitsubishi Heavy Industries Co., Ltd. The operating parameters of this machine are shown in Table 1. Dye, treated as acidic waste oil. Table 2 is the design of the clearance between the floating ring and the shaft, sealing oil pressure and consumption of sealing oil. Compressor after more than two years of operation, the floating ring wear, and the gap between the shaft increases, sealing oil consumption up to 200 liters a day. As shown in Figure 1, the inner side of the balance plate is subjected to the outlet pressure of the compressor. The outer side of the balance plate is connected to the low pressure side by a balance pipe so that the pressure inside the compressor at both ends of the seal