论文部分内容阅读
水泵运行效果好坏,一般由运行效率的高低来决定。不过在生产中,对水泵运行的考核,不是效率,而是水泵运行时所消耗的电能与出水量的比值。表示的方式有两种。一为每度电的出水量大小;另一为每吨或每千吨水的耗电量,两者具有互为倒数的关系,生产上实际采用的考核方式都是以度/千吨表示。水泵是由交流电动机驱动的,用联轴器把机组耦合在一起。如不考虑轴功率传递时
The effect of the pump operation is generally determined by the level of operating efficiency. However, in the production, the assessment of the operation of the pump is not the efficiency, but the ratio of the electric energy consumed by the pump during operation to the amount of the water. There are two ways to represent it. One is the amount of water discharged per kilowatt-hour; the other is the electricity consumption per tonne or per kiloton of water. Both have a reciprocal relationship, and the actual assessment methods used in production are expressed in degrees per kiloton. The water pump is driven by an alternating current motor and the coupling is used to couple the units together. If shaft power transfer is not considered