| 王 超， 陶乐仁， 黄理浩， 虞中旸， 沈冰洁.制冷剂R32吸气状态对变频转子式压缩机的影响[J].轻工机械,2017,35(4):38-43 |
| 制冷剂R32吸气状态对变频转子式压缩机的影响 |
| Impact of Different R32 Suction Status on Variable Frequency Scroll Rotary Compressor Performance |
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| DOI：10.3969/j.issn.1005 2895.2017.04.008 |
| 中文关键词: 滚动转子式压缩机 冷水机组实验台 R32制冷剂 吸气状态 |
| 英文关键词:scrolling rotary compressor water chiller plant bench R32 refrigerant suction status |
| 基金项目:上海市动力工程多相流动与传热重点实验室（13DZ2260900） |
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| 中文摘要: |
| 吸气带液作为一种既不增加系统成本又能降低压缩机排气温度的方法，需要进一步了解其对核心部件压缩机性能的影响，课题组利用变流量水冷冷水机组实验台，R32作为循环系统冷媒，模拟实际运行工况进行实验，研究频率、吸气干度和过热度对滚动转子式压缩机性能的影响。实验研究结果表明：相同工况下，频率越高，系统压比越高；在吸气饱和状态下，同频率下，压比越高，压缩机等熵压缩效率和容积效率越低；相同压比下，频率越高，等熵压缩效率和容积效率越高。吸气带液时，压缩机排气温度急剧下降，综合效率系数达到最大；吸气过热度对压缩机效率几乎无影响，吸气带液时，压缩机效率只有小幅度的下降。得出了R32滚动转子式压缩机适合进行少量吸气带液压缩的结论。 |
| 英文摘要: |
| Compressor with a small amount of liquid refrigerant suction, which is regarded as a method that can reduce the discharge temperature of compressor but not increase the cost, needs to be further researched. The variable flow mass rate of water chiller plant bench was used and R32 as the refrigerant of circulatory system to make a series of related experiments under simulating actual operating conditions, to study on the impact of frequency, refrigerant quality and superheat degree on scroll rotary compressor performance, and reach the conclusion that R32 scroll rotary compressor was suitable for small fluid refrigerant suction. Experimental study results demonstrated that: under the same conditions, the higher the frequency, the higher the system pressure ratio; at the suction saturation point when the frequency was the same, the higher the pressure ratio, the lower the isentropic compression efficiency and volumetric efficiency. However, under the same pressure ratio, the higher the frequency, the higher the isentropic compression efficiency and volumetric efficiency. When suction refrigerant was superheat, there was nearly no impact on compressor efficiency, while when suction small liquid refrigerant, the discharge temperature was falling down sharply, the overall efficiency ratio was highest, and compressor efficiency only had a small decline. |
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