| 何俊， 陶乐仁， 虞中旸.基于电子膨胀阀调节的制冷系统湿压缩特性研究[J].轻工机械,2018,36(5):34-39 |
| 基于电子膨胀阀调节的制冷系统湿压缩特性研究 |
| Study of Wet Compression Characteristics of Refrigeration System Based on Electronic Expansion Valve Adjustment |
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| DOI：10.3969/j.issn.1005 2895.2018.05.007 |
| 中文关键词: 电子膨胀阀 压缩机 湿压缩 排气温度 电效率 容积效率 |
| 英文关键词:electronic expansion valve compressor wet compression exhaust temperature electrical efficiency volumetric efficiency |
| 基金项目:上海市动力工程多相流动与传热重点实验室项目(13DZ2260900) |
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| 中文摘要: |
| 为了对压缩机热力性能进行优化，改善排气温度，提升VRF制冷系统循环稳定性，基于电子膨胀阀的调节特性，通过在变频工况下改
变电子膨胀阀的开度进行了压缩机的不完全湿压缩循环试验研究。实验结果表明：较低频率下的电子膨胀阀可调范围较小，但压缩机少量吸气带液可对调节难度
略有改善；此外，吸气带液阶段的压缩机电效率与容积效率仅下降约0.1%，而排气温度改善效果显著。 |
| 英文摘要: |
| In order to optimize the thermodynamic performance of the compressor, improve the discharge temperature and the cycle stability of the VRF
refrigeration system, the compressor's incomplete wet compression cycle test was carried out by changing the opening degree of the electronic expansion valve under variable frequency
condition on the basis of the adjustment characteristics of the electronic expansion valve. The experimental results show that the electronic expansion valve at lower frequencies has a smaller
adjustable range. However, a small amount of the liquid in the suction process of the compressor can slightly improve the adjustment difficulty. In addition, the electrical efficiency and
volumetric efficiency of the compressor at the suction stage only decrease by about 0.1% but the effect of improving compressor discharge temperature is remarkable. |
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