| 摘要: |
| 不完全湿压缩能大幅度降低压缩机排气温度，然而该应用的最大难点是如何控制实时压缩机吸气干度在合适的范围内。本文提出了假拟饱和等熵压缩排气温度控制压缩机吸气该干度的方法，理论分析了在AHRI（空调供暖制冷协会）空调和低温制冷两种典型工况下，R22、R32、R134a和R410A四种制冷剂作为冷媒时，应用该方法控制压缩机吸气带液时系统性能的变化，并通过R32实验验证该结论的正确性。结果表明：利用假拟饱和等熵压缩排气温度可以将压缩机吸气状态控制在少量湿蒸气的状态；在T-s图上具有钟型饱和线形状的R32制冷剂，利用假拟饱和等熵压缩所控制的制冷系统吸气干度在0.96~1时制冷量和COP均能达到最大值。 |
| 关键词: 湿压缩 吸气干度 排气温度 实验探究 |
| DOI： |
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| 基金项目:上海重点实验室(1N-15-301-101)项目资助。 |
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| Experimental Research on the Control Method of Suction Refrigerant Quality for Wet Compression Refrigeration System |
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Wang Chao1, Tao Leren1, Yang Lihui2, Yu Zhongyang1, Shen Bingjie1
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| (1.University of Shanghai for Science and Technology;2.United Technologies Company Overview) |
| Abstract: |
| Incomplete wet compression can sharply reduce the discharge temperature of compressors. However, the challenge of the application is how to control the real-time suction refrigerant quality of compressor within the appropriate range. A method using quasi saturation isentropic compression discharge temperature (QSICDT) to control suction refrigerant quality of compressor was proposed in the paper. The performance change of refrigeration system with R22, R32, R134a and R410A is theoretically analyzed under AHRI (air-conditioning heating and refrigeration institute) air conditioning and refrigeration applications when this method is used to control the suction refrigerant with a small liquid, and the method is verified by R32 experimental data. The results show that using QSICDT can control compressor suction with a small amount of liquid refrigerant; the capacity and COP all can reach the maximum for wet compression refrigeration system with R32 by using QSICDT to control suction refrigerant quality at 0.96 to 1. |
| Key words: wet compression suction refrigerant quality discharge temperature experimental research |
