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85年1月6日下午,我操作工对组装库中NO_1进行手动冲霜。在冲霜过程中突然供电中断,由于操作人员技术不熟练,忘记打开冷凝器排水阀,因为设备不设排液桶,冲霜回液是回到冷凝器中的(兼作贮液器)。因回液的原因,冲霜开始时冷凝器内压力很低,当突然停电,压缩机不运转,由于回液使冷凝器内压力下降很快,当时水泵又停转,操作工未能及时通过放水阀放出冷凝器内残水,导至残水在其中结冰,将冷凝器内下部五根铜管胀裂,使水进入系统。
On the afternoon of January 6, 1985, I operated a manual red cream on NO_1 in the assembly warehouse. In the red cream suddenly interrupted power supply, due to unskilled operator, forget to open the condenser drain valve, because the device does not set a drainage barrel, red cream back to the condenser is back to the liquid (also as a reservoir). Due to the backflush, the pressure inside the condenser at the beginning of the red frost is very low. When a sudden power failure occurs, the compressor does not work. As the backflushing causes the pressure in the condenser to drop rapidly, the pump stops at the same time and the operator fails to pass in time The discharge valve discharges the residual water in the condenser, leading to the freezing of the water in which the five copper tubes in the lower part of the condenser are burst to make the water enter the system.