Experimental Research on the Control Method of Suction Refrigerant Quality for Wet Compression Refrigeration System

Wang Chao; Tao Leren; Yang Lihui; Yu Zhongyang; Shen Bingjie

doi:10.3969/j.issn.0253-4339.2017.02.034

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Experimental Research on the Control Method of Suction Refrigerant Quality for Wet Compression Refrigeration System

更新时间：2024-07-18

- Experimental Research on the Control Method of Suction Refrigerant Quality for Wet Compression Refrigeration System
- Journal of Refrigeration Vol. 38, Issue 2, (2017)
- 作者机构：
  
  1. 上海理工大学
  2. 开利空调冷冻研发管理有限公司
- 作者简介：
- 基金信息：
- DOI：10.3969/j.issn.0253-4339.2017.02.034
  CLC：
- Published：2017
- 稿件说明：
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Wang Chao, Tao Leren, Yang Lihui, et al. Experimental Research on the Control Method of Suction Refrigerant Quality for Wet Compression Refrigeration System[J]. Journal of refrigeration, 2017, 38(2).
DOI：

Wang Chao, Tao Leren, Yang Lihui, et al. Experimental Research on the Control Method of Suction Refrigerant Quality for Wet Compression Refrigeration System[J]. Journal of refrigeration, 2017, 38(2). DOI： 10.3969/j.issn.0253-4339.2017.02.034.

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。

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.

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