浙江绍兴咸亨大酒店中央空调年运行时间在3000ｈ左右,其所配备的循环水泵及冷却塔风机能耗占空调能耗的30%左右。由于设计不合理,有些水泵的配备余量很大,大大超过空调主机所需的水量和流速,从而使能耗无功浪费。绍兴咸亨大酒店结合实际,决定采取调换水泵的措施,以达到减少投入 Zhejiang Shaoxing Xiangyang Hotel central air-conditioning running time in about 3000h, which is equipped with circulating pump and cooling tower fan air-conditioning energy consumption accounts for about 30% of energy consumption. Due to the unreasonable design, some pumps are equipped with a large margin, which greatly exceeds the amount of water and flow rate required by the air-conditioning host so as to make the energy consumption wasteless. Shaoxing Xianheng Hotel combined with the actual decision to take the exchange of water pump measures to achieve reduced investment