CAJ | 학술논문

空气源热泵热水器运行在高温工作区时,压缩机功率及压缩机排气温度往往偏高,这不仅给机组的安全稳定性带来了隐患,同时系统的效率也会明显下降.针对这一问题,文中提出了一种两级冷凝热泵热水系统以及相应的控制方式,并进行了实验.实验结果表明,与传统的热泵热水器相比,这一系统不仅能提高供水温度,而且能让热泵热水机组在高温工作区的冷凝温度相对较低,从而在提高供水温度的同时,有效的降低了机组最高压缩机功率以及最高压缩机排气温度,系统运行安全、可靠、高效.
공기원열빙열수기운행재고온공작구시,압축궤공솔급압축궤배기온도왕왕편고,저불부급궤조적안전은정성대래료은환,동시계통적효솔야회명현하강.침대저일문제,문중제출료일충량급냉응열빙열수계통이급상응적공제방식,병진행료실험.실험결과표명,여전통적열빙열수기상비,저일계통불부능제고공수온도,이차능양열빙열수궤조재고온공작구적냉응온도상대교저,종이재제고공수온도적동시,유효적강저료궤조최고압축궤공솔이급최고압축궤배기온도,계통운행안전、가고、고효.
When an air source heat pump water heater runs at higher water temperature,the power input and the discharge temperature of its compressor are high,leading to problems of security and stability,and the significant decrease of the system efficiency.In our study,a hot water system with a two-stage condensation heat pump and its corresponding control method were proposed.The experimental results show that compared with the conventional heat pump water heaters,the present system can raise the temperature of supply water and lower the condensation temperature of the unit running at higher water temperature,leading to the decrease in the maximum compressor power input and the highest compressor discharge temperature.