介绍了变频空调器中应用毛细管节流的系统流程和毛细管的数学模型,通过实验得出了变频空调器中应用毛细管节流的系统性能随毛细管管长及频率的变化关系,证实了应用毛细管节流的实用性.

The discharge characteristic and energy efficiency ratio, the cooling and heating characteristic, the quickly melting frost and ultralow temperature heating characteristic of the circulatory system of heat-pump inverter air conditioner of two throttling methods throttled by thermal-electric expansion valve and cappillary is compared. result shows that every kind of advantage of inverter air conditioner is fundamentally assured on the inverter air conditioner throttled by cappillary. But its energy efficiency ratio is lower, and its noise is bigger, it is an intermediate product; the function of inverter air conditioner throttled by thermal-electric expansion valve is good at running, melting frost, energy efficiency ratio and reducing noise,it belongs to an ideal product.