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国产系列化制冷压缩机采用压力式润滑系统。如果供油过多还会造成液击,损坏机器。我省二个单位曾发生过因加油超过规定值而发生液击事故。现分述如下: 事故之一某万吨冷库压缩机机房有一台上海第一冷冻机厂产的自带油分离器的8AS—12.5制冷压缩机。某天,在开机之前一位操作人员将自带油分离器内的润滑油放回至该台制冷压缩机曲轴箱。然后接通电源,启动机器。当所有汽缸都投入运行时,随即发生严重的敲击声,作紧急停机处理。从现场现象看,否定了氨液击的可能性。然后,打开汽缸盖,检查时发现排汽腔、汽缸内有大量润滑油。曲轴箱内润滑油满满的。经查工作日记,
Domestic series of refrigeration compressors using pressure lubrication system. If too much oil will result in liquid hammer, damage to the machine. Two units in our province had occurred due to refueling more than the provisions of the liquid crystal hammer accident occurred. Now described as follows: One of the accident a million tons of cold storage compressor room has a Shanghai Refrigeration plant production comes with oil separator 8AS-12.5 refrigeration compressor. One day, an operator prior to starting the machine returns the lubricant contained in the oil separator to the compressor of the refrigeration compressor crankcase. Then turn on the power and start the machine. When all the cylinders are in operation, a serious rapping ensues and emergency shutdown occurs. From the scene of the phenomenon, denied the possibility of liquid ammonia hit. Then, open the cylinder head, inspection found exhaust chamber, the cylinder has a lot of lubricating oil. Crankcase full of oil. After checking the diary,