负荷变化范围 meaning in Chinese

range of load fluctuation

The paper analyzes the non - lineal relations of the quantity of heat exchange and water flux of coil exchanger in part - load operating condition , the shortage of deciding the water flux in bypass pipe , the disadvantage that the operating condition of pumps and chiller ca n ' t be met with the load change of the air conditioning system in different operating condition of using pressure - difference bypassing control in primary water pump system . using load control method in the change of the operating condition of primary water pump system can realize that the load change is small and reasonable in the on / off condition of pumps and m m chiller by comparing load control method in primary variable - flow water pump system with pressure - difference bypassing control method , back water temperature control method
本论文从目前空调工程中使用的变流量水系统入手，研究了盘管换热器在部分负荷下水流量与换热量的非线性关系，分析了文献中介绍的旁通管通流能力选择的不足之处和一次泵水系统采用压差旁通控制时，工况转换不能满足系统控制要求的缺陷；比较了一次泵变流量水系统中压差旁通控制法、回水温度控制法、负荷控制法的精确性，并得出了在一次泵水系统的工况转换时，采用负荷控制法能使冷水机组及其相应水泵在启停时的负荷变化范围较小，更符合建筑物的冷量需求，节能效果较好的结论。