变频器在暖通空调系统中的应用分析

Analysis of Frequency Converters' Application in HVAC Systems

变频器现已普遍应用于暖通空调系统中调节水泵与风机的转速,达到改变流量和节能的目的。为使变频器能更好的应用于暖通空调系统,探讨了变频器在设计选用及实际应用时应注意的事项,包括变频器的容量确定、工作环境要求、变频器的频率下限以及变频器运行保障措施等问题。

Frequency converters recently have been widely used in regulating the speeds of pumps and fans in HVAC systems aiming at changing the rates of flow and energy saving. In order to apply frequency converters in HVAC systems better, this paper discusses the notices about frequency converters in design and selection and in practical application, including the determination of capacity, the requirements on the working environment, the lowest frequency limit and the protective measures in operation.