空调箱调节阀的选择与节能
Selection and energy saving of air conditioning box control valves
摘要：
将两管制空调箱换热盘管与等百分比特性调节阀串联设置，并根据冷盘管的静特性计算了其与不同阀权度（S）调节阀的合成放大系数。研究发现：合成放大系数最接近线性的，不是自称S恒等于1的压差平衡电动调节阀，而是S=0.11的等百分比特性调节阀；供热时，换热盘管与压差平衡电动调节阀的合成放大系数的线性度不如理想可调比R=50，S=0.6及R=100，S=0.28的等百分比特性调节阀。所用调节阀S值的下降，增大了空调水系统的节能空间，值得进一步探讨和推广。
Abstract：
Connecting the heat exchange coils of two-pipe air conditioning boxes and the equal percentage characteristic control valves in series, calculates the synthetic amplification factor of them with different valve authorities (S) according to the static characteristics of the cooling coil. The study finds that when using an equal percentage characteristic control valve with S=0.11 instead of a differential pressure balance electric control valve with self-proclaimed S=1, the synthetic amplification factor is closest to the linear. Also, the linearity when using a differential pressure balance electric control valve is worse than that of using an equal percentage characteristic control valve with theory adjusting ratio R=50, S=0.6 or R=100, S=0.28 under the heating condition. Meanwhile, the decrease of the S value of control valves will lead to a great energy saving potential for the air conditioning water system, which is worthy of further discussion and promotion.
Keywords:air conditioning box, control valve, equal percentage characteristic, valve authority, static characteristic of coil, synthetic amplification factor, air conditioning water system, energy saving