建立了热力膨胀阀模型，重点建立了流量与阀前后压差及制冷剂进出口干度的关系。
The model of thermal expand valve is built and the connection of flux, pressure difference between the front and behind of the valve and cryogen dryness of inlet and outlet.
压缩机构(15)压缩制冷剂，将其从排出口(41)向空间(45)排出。
The compression mechanism (15) compresses the refrigerant and discharges it to the space (45) from a discharge opening (41).
热力膨胀阀的开度受控于蒸发器出口的制冷剂过热度，通过开度的调节，达到调节蒸发压力和控制制冷剂过热度的作用；
The opening degree of the thermo-mechanic expanding valve is controlled by the over-heating degree of the refrigerant at the outlet of the evaporator.
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