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华东某冶金公司高炉煤气压缩机站机组于1986年年初正式投入工业性运转不久,其中一台4L-40/4型少油润滑煤气压缩机的一级活塞杆完全断裂,幸而操作者听到异常响声后及时停机,才避兔了事故的扩展。 通过现场凋查分析和断裂实物的观测,认为活塞杆的断裂是由以下几个原因所致: 1.气缸进水,出现严重的“液击”现象 该公司高炉煤气中含水含尘量较大（机械水含量高达25g/Nm～3）,在气体进入煤气压缩机前没有两级脱水除尘装置（不包括压缩机配带的进气过滤器）,靠近煤气压缩机配置着文
East China Metallurgical Company blast furnace gas compressor station unit officially put into operation in early 1986, industrial operation, including a 4L-40/4 less oil lubricated gas compressor piston rod completely broken, but fortunately the operator heard an exception Shut down in time after the noise, only to avoid the expansion of the accident. Through on-the-spot witness analysis and fracture physical observation, it is considered that the fracture of the piston rod is caused by the following several reasons: 1. The cylinder enters the water with a serious “liquid strike” phenomenon. The blast furnace gas contains a lot of dust (Mechanical water content of up to 25g / Nm ~ 3), there is no two-stage dewatering dust removal device before the gas enters the gas compressor (excluding the air intake filter equipped with the compressor)