电子膨胀阀在冷水机中的应用改进

电子膨胀阀在冷水机系统中一般作为控制过热度的工具，用于调整系统的效率及控制系统制冷输出，但是往往由于受到过热度限制而不能达到理想的温度控制，本文中将电子膨胀阀作为旁通阀使用，利用热力膨胀阀自主调整过热度，达到了比较理想且稳定的控制效果。

The improvement of electrical expansion valve usage on Chiller

At chiller system usually the electrical expansion valve was taken as the tool to control the superheat,which would adjust the system efficiency and cooling output,however,this kind of system could not achieve a perfect temperature accuracy control because of the limitation of superheat. The electrical expansion valve was taken as by pass function at this paper,and use a thermal expansion valve for the control of superheat,the result is perfect.