王枫;陈征;郭强;
WANG Feng;CHEN Zheng;GUO Qiang;Dalian Jiaotong University;Panasonic Appliances Compressor(Dalian) Co.,Ltd.;

• 1:大连交通大学
• 2:松下压缩机(大连)有限公司

摘要(Abstract)：

研究了不同蒸发温度和冷凝温度下,活塞式制冷压缩机容积效率的变化。在现有理论的基础上,采用试验的方法,通过对不同工况下制冷剂质量流量的监测,定量分析了压缩机的容积效率变化规律。试验中采用某型号不同功率压缩机进行测试,其结果表明压缩机的容积效率随着蒸发温度的降低和冷凝温度的升高而降低,特别是在当蒸发温度低于-35℃时,压缩机的容积效率已经小于50%,严重影响了压缩机的能效。对于不同功率的压缩机,随着蒸发温度由-15℃下降至-40℃,其容积效率从70%多降至30%左右,功率越小的压缩机,容积效率下降得越快。特别是低蒸发温度对小功率压缩机的容积效率影响比较大,其下降率接近60%,容积效率只有30%左右。试验研究为制冷系统的性能改进提供参考,在低温制冷系统的设计时,一定要合理选用活塞式制冷压缩机,以实现节能的目标。
The effect of the evaporating temperature on the volumetric efficiency of reciprocating refrigeration compressor was studied by means of experiments. Based on the existing theory,the mass circulation rate was recorded during the experiment process,and the volumetric efficiency was calculated and analyzed quantitatively. A set of x- model compressor were used to carry out a series of experiments. The results showed that the volumetric efficiency was decreased with the decreasing evaporating temperature,especially the volumetric efficiency was lower than 50% when the evaporating temperature was lower than- 35℃,which seriously damaged the efficiency of the compressor. The decline of the evaporating temperature had a big affect on the compressor with small power. With the decrease of evaporating temperature,the volumetric efficiency was a nearly 60% decrease and the volumetric efficiency was only 30%. Therefore,during the design process of refrigeration system,a suitable selection of the compressor was important to obtain a better economy goal.

关键词(KeyWords)： 容积效率;活塞式制冷压缩机;变工况;压缩机
volumetric efficiency;reciprocating refrigeration compressor;variable condition;compressor

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金项目(51205035);; 辽宁省教育厅科学研究一般项目(L2013173)

作者(Author): 王枫;陈征;郭强;
WANG Feng;CHEN Zheng;GUO Qiang;Dalian Jiaotong University;Panasonic Appliances Compressor(Dalian) Co.,Ltd.;

Email:

DOI:

参考文献(References)：

• [1]唐春丽,王谦,陈育平,等.空调机组制冷变工况运行特性研究[J].江苏大学学报(自然科学版),2014,35(6):663-666.
• [2]黄虎,张建忠,李奇贺,等.风管送风式空调(热泵)机组制热变工况运行的实验研究[J].流体机械,2007,35(9):59-61.
• [3]沈希,王晓燕,黄跃进,等.制冷压缩机变工况运行的热力性能研究[J].制冷学报,2009,30(6):15-19.
• [4]高俊峰.活塞式压缩机变工况热力学分析[J].石油机械,2000,28(3):39-41.
• [5]商萍君,陈利军.冷凝温度和蒸发温度变化时往复压缩机的变工况特性[J].制冷,2008,27(2):68-71.
• [6]王站成,徐志亮,王志远,等.制冷压缩机变工况性能仿真与试验研究[J].低温与超导,2009,37(5):61-65.
• [7]Jin X,Wang S,Zhang T,et al.Intermediate pressure of two-stage compression system under different conditions based on compressor coupling model[J].International Journal of Refrigeration,2012,35:827-840.
• [8]缪道平.活塞式制冷压缩机(第2版)[M].北京:机械工业出版社,1992.
• [9]中华人们共和国标准.GB/T 5773—2004容积式制冷剂压缩机性能试验方法[S].北京:中国标准出版社,2004.
• [10]孙晓锋,姜德龙,吕兆升,等.压电双晶片和单晶片驱动下泵的输出性能研究[J].流体机械,2015,43(6):39-43.
• [11]谭琴,张金圈,廖雪丽,等.滚动转子压缩机工况对排气阀运动规律影响研究[J].流体机械,2014,42(9):14-17.
• [12]吴金星,李亚飞,张灿灿,等.绕管式换热器的结构形式分析及应用前景[J].压力容器,2014,31(2):38-42.
• [13]孔繁余,何玉洋,郑德,等.外啮合齿轮泵流量特性影响因素分析[J].排灌机械工程学报,2014,32(3):108-112.
• [14]王学军,郑治国,葛丽玲.离心压缩机结构形式发展现状与展望[J].化工设备与管道,2015,52(2):1-13.
• [15]中华人们共和国标准.GB/T 10079—2001活塞式单级制冷压缩机[S].北京:中国标准出版社,2001.