制冷循环水系统的节能改造及应用  

Application of Energy Saving and Renovation of Refrigeration Circulating Water System

作　　者：王佳春 WANG Jia-chun(Xiamen Golden Egret Special Alloy Co.,Ltd,Xiamen 361006,Fujian,China)

机构地区：[1]厦门金鹭特种合金有限公司,福建厦门361006

出　　处：《机械研究与应用》2024年第6期126-128,135,共4页Mechanical Research & Application

摘　　要：为提高制冷循环水系统的用电效率,降低耗电量,对目前制冷循环水系统中常用的三相异步感应电机与永磁电机进行对比,分析两者在全范围负载条件下的电机能耗利用率情况,提出了使用高效率、高功率因素电机的方案,并确定选择永磁电机水泵与风机;其次,对电机与风机、电机与水泵的传动方式进行优化,分别采用电机与风叶直连、电机与泵头长耦合柔性长连接的方式来达到降低风机电耗与噪音、提升水泵泵头效率的效果;最后,对整个系统控制方式进行优化,实现自动闭环运行。通过对比改造前后的使用效果与用电量得出,水泵能耗降低29.6%,风机能耗降低90.7%,系统实际月用电量降低33%,风机降噪效果显著。In order to improve the power efficiency of refrigeration circulating water system and reduce power consumption,after comparing the common used three-phase asynchronous induction motor with permanent magnet motor,and analyzing their energy consumption utilization rate under full load condition,the permanent magnet motor water pump which have high-efficiency,high-power factor is selected.Then,the transmission methods between the motor water pump and the fan,as well as between the motor and the water pump are optimized.Methods of the direct connection between the motor and fan blades,and the long coupling connection between the motor and the pump head are adopted respectively to achieve the effect of reducing fan power consumption and noise,and improving efficiency of the water pump head.Finally,the control mode of the entire system is optimized to achieve automatic closed-loop operation.By comparing the use effect and electricity consumption before and after the transformation,it is concluded that the energy consumption of the water pump is reduced by 29.6%,the energy consumption of fan is reduced by 90.7%,the actual monthly electricity consumption of the system is reduced by 33%,and the noise reduction effect of the fanis remarkable though this renovation.

关 键 词：永磁电机 制冷循环水系统 水泵 风机 耗电量 自动闭环运行 

分 类 号：TU831[建筑科学—供热、供燃气、通风及空调工程]