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单缸补气转子式压缩机在热泵系统中制热性能
其他题名Heating performance of single cylinder vapor injection rotary compressor applying in air-source heat pump system
孙晋飞1,2,3,4; 朱冬生1,2,3; 尹应德1,2,3; 李修真1,2,3,4; 涂爱民1,2,3
2017-09
发表期刊化工学报
ISSN0438-1157
卷号68期号:9页码:3551-3557
摘要利用中间补气技术将单缸滚动转子式压缩机应用于空气源热泵系统中,系统地研究以R410A为冷媒的热泵系统在变频、变补气压力工况下制热性能的变化规律。实验结果表明:中间补气系统的制热量及系统功率均随着压缩机频率f、中间补气压力pinj的增加呈上升趋势,同频率下系统功率则以线性方式增长,而系统制热量随着补气压力及频率的增大,其相对增长率逐渐减小。因此COPh在低频时存在最佳补气压力,而在高频时无极值点;与单级压缩系统相比,在800-1200 kPa、50-80 Hz范围内,中间补气系统的制热量、功率、COPh最大提升分别为27.55%、30.75%、7.1%。随着频率及补气压力的增加,系统COPh下降,因此中间补气技术应与合理的控制策略相结合,可使中间补气系统达到节能高效的目的。
其他摘要A novel single cylinder rotary compressor, which was increased a vapor injection hole near the discharge port, was adopted to improve the heating performance of a flash tank vapor injection air-source heat pump(FTHP) system at low ambient temperature. The effects of compressor frequency f and injection pressure pinjon system performances of a R410 A FTHP system were measured and investigated systematically. The results showed that both heating capacity and power consuming of the FTHP system increased with increasing the compressor frequency and injection pressure. The FTHP system power consuming at fixed frequency increased linearly with increasing injection pressure. The increasing rate of FTHP system heating capacity declined as the frequency and injection pressure increased. Therefore, the heating COPh had a peak value at certain injection pressure when the frequency was low. After the peak point or at high frequency, the heating COPh decreased as the frequency and injection pressure increased. In the range of 800 kPa to 1200 kPa and 50 Hz to 80 Hz, the maximum improvement of the FTHP heating capacity, power consuming, and COPh were 27.55%, 30.75% and 7.1%, respectively, compared to the single stage compression system. In order to make the FTHP system efficiently, the control strategy must be optimized to keep the system operated at the optimum injection pressure and frequency.
关键词空气源热泵 补气 单缸滚动转子式压缩机 制热性能 变频 补气压力 air-source heat pump vapor injection single cylinder rotary compressor heating performance variable frequency injection pressure
DOI10.11949/j.issn.0438-1157.20170171
语种中文
引用统计
文献类型期刊论文
条目标识符http://ir.giec.ac.cn/handle/344007/16553
专题中国科学院广州能源研究所
通讯作者朱冬生
作者单位1.中国科学院广州能源研究所,广东广州510640;
2.中国科学院可再生能源重点实验室,广东广州510640;
3.广东省新能源和可再生能源研究开发与应用重点实验室,广东广州510640;
4.中国科学院大学,北京100049
第一作者单位中国科学院广州能源研究所
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孙晋飞,朱冬生,尹应德,等. 单缸补气转子式压缩机在热泵系统中制热性能[J]. 化工学报,2017,68(9):3551-3557.
APA 孙晋飞,朱冬生,尹应德,李修真,&涂爱民.(2017).单缸补气转子式压缩机在热泵系统中制热性能.化工学报,68(9),3551-3557.
MLA 孙晋飞,et al."单缸补气转子式压缩机在热泵系统中制热性能".化工学报 68.9(2017):3551-3557.
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