一、前言意大利MINO公司1400冷轧机在压上能源系统中串接一个减压阀,在试车调试中,发现减压阀出口压力波动很大,以致于轧机不能正常工作。在中方建议下,只作了调整恒压式变量泵工作压力和抽掉减压阀阀芯的简单处理,压力波动立即消失,轧机运行正常。我们认为在此系统中串接减压阀是不合适的。 First, the foreword Italy MINO 1400 cold rolling mill in the pressure on the energy system in series with a pressure reducing valve, commissioning test, found that the pressure relief valve outlet pressure fluctuations, so that the mill can not work properly. Under the proposal of the Chinese side, only simple adjustments were made to adjust the working pressure of the constant pressure type variable displacement pump and to remove the valve core of the relief valve. Pressure fluctuations disappeared immediately and the rolling mill operated normally. In our opinion, it is not suitable to connect a relief valve in this system.