| 摘要: |
| 以使用R32为制冷剂的变制冷剂流量（VRF，variable refrigerant flow）转子式水源热泵系统为研究对象，通过改变电子膨胀阀开度（从6%到60%），对在不同压缩机频率（从40 Hz到60 Hz）下热泵系统性能的变化进行了实验分析。结果表明：在压缩机吸气口由过热状态向带液状态转变的过程中，电子膨胀阀开度的调节范围呈先减小后增大的变化趋势；随着电子膨胀阀开度的增加，系统的压比是持续下降的；在压缩机少量吸气带液（0.98
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| 关键词: 水源热泵 转子压缩机 电子膨胀阀 系统性能 |
| DOI： |
| 投稿时间：2019-03-18 修订日期：2019-08-20
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| 基金项目:上海市动力工程多相流动与传热重点实验室资助项目（13DZ2260900）。 |
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| Influence of opening degree of electronic expansion valve on performance of R32 water source heat pump |
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Hu Pengrong, Tao Leren, He Jun, Yu Zhongyang
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| (Institute of refrigeration and cryogenics, University of Shanghai for Science and Technology) |
| Abstract: |
| The performance of a variable refrigerant flow type of rotor water source heat pump was experimentally investigated at different compressor frequencies (from 40 to 60 Hz) andopenings of the electronic expansion valve (from 6% to 60%). As the suction of the compressor changed from an overheated state to a gas-liquid state, the adjustment range of the opening of the electronic expansion valve decreased first and then increased. As the opening of the expansion valve increased, the compressionratio of the system continuously decreased.Furthermore, when the suctiongas contained a small amount of liquid (0.98
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| Key words: water source heat pump rotor compressor electronic expansion valve system performance |
