【摘要】 在自搭建的液环法节流机构流量特性试验台上 ,采用R2 2制冷剂 ,试验研究节流阀开度 (流通面积 )、节流前后压差、入口密度、入口过冷度、出口比容、干度以及阀头半锥角和径向间隙对电子膨胀阀制冷剂流量系数的影响 ,获得了流量系数的量化关系并进行了试验验证。结果表明 ,误差在± 10 .5 %以内。更多还原

【Abstract】 A test bench based on liquid ring method(LRM) was established. Experiments and analyses were conducted including the influence of valve’s opening(flowing area), pressure drop, inlet density, inlet supercooling, outlet specific volume, and valve head linetype upon the mass flow coefficient utilizing R22. And thus a correlation was obtained and verified. The experimental results show that the relative deviation of the correlation ranges from -10.5%～10.5%.更多还原