| 摘要: |
| 本文搭建了带闪发补气的家用空气源热泵热水器实验系统,在环境控制室中研究其在不同温度下的运行性能,并与单 级压缩系统进行对比。 结果表明:带闪发补气的家用空气源热泵热水器制热量和制热 COP 均大于单级压缩系统,环境温度为 -15 ℃时,制热量增大 21. 3%;相同水量和初始、结束温度下,补气系统的加热时间较单级系统缩短 20. 1%;闪发补气使压缩机的 排气温度降低 11. 3 ℃ ,保证了机组的运行安全;APF 计算表明闪发补气的系统在环境温度较低地区使用效果更好。 |
| 关键词: 热泵热水器 补气 闪发器 制热性能 |
| DOI： |
| Received:March 29, 2022Revised:May 13, 2022 |
| 基金项目: |
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| Experimental Study on Household Air-source Heat Pump Water Heater with Flash Tank |
|
Wang Jiazheng1, Ma Guoyuan1, Yu Guoxin2, Zhu Wanpeng2, Gou Qianqian1, Xu Shuxue1
|
| (1.Faculty of Environment and Life, Beijing University of Technology;2.Qingdao Haier Intelligent Technology R&D Co. , Ltd.) |
| Abstract: |
| The experimental system of household air-source heat pump water heater with flash tank was set up, and its operation perform- ance at different temperatures was studied in the environmental control room, and compared with the single-stage compression system. The results show that the heating capacity and heating COP of the household air-source heat pump water heater with flash tank are greater than that of the single-stage compression system, and the heating capacity increases 21. 3% when the ambient temperature is -15 ℃ . The heat- ing time of air-source heat pump water heater with flash tank system is shortened by 20. 1% compared with that of single-stage system un- der the same water volume and initial and ending temperatures. The discharge temperature of the compressor is reduced by 11. 3 ℃ , which ensures the operation safety of the unit. The calculation of APF shows that the system of flash tank replenishment is better in the ar- ea with lower ambient temperature. |
| Key words: heat pump water heater vapor-injection flash tank heating performance |
