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１ 变频调速能节能降耗我厂二尿素车间有３台卧式三联柱液氨泵，型号为３Ｗ－Ａ２，电机额定功率２２５ｋＷ。入塔氨是由自调阀Ｇ３来控制的，如图１。图１ 液氨输送工艺流程图１、２、３－液氨泵；４－Ｇ３调节阀；５－液氨缓冲槽；６－氨预热器从图１中可看出，液氨泵运行
1 frequency control speed energy saving I plant two urea workshop has three horizontal triple column liquid ammonia pump, model 3W-A2, motor rated power 225kW. Into the tower ammonia is controlled by the self-regulating valve G3, shown in Figure 1. Figure 1 liquid ammonia transport process flow diagram 1,2,3-liquid ammonia pump; 4-G3 control valve; 5-liquid ammonia buffer tank; 6- ammonia preheater can be seen from Figure 1, the liquid ammonia pump operation