摘要
阐述商业用直热式热泵热水机组的设计背景、设计难点和关键点。通过直热式热泵热水机组与循环式热泵热水机组的对比分析,说明直热式热泵热水机组的优势。同时针对直热式热泵热水机组的高温可靠性、除霜、水位控制等关键点的设计要点进行分析。根据国内外热泵热水行业的发展现状,指出国内热泵热水行业的发展方向。
Illustrates the design background, difficulties and key points of commercial direct-heating heat pump water heater units（CDHPWHU）. Compared with recycled heating type,explains the advantages of CDHPWHU. At the same time, analyzes the difficulties and key points of CDHPWHU＇s design, for example, high-temperature reliability, defrosting, the water level control and so on. Finally, in accordance with the status of domestic and foreign development of heat pump water heater industry, points out development direction of domestic heat pump water heater industry.
出处
《制冷与空调》
2009年第4期40-44,共5页
Refrigeration and Air-Conditioning
关键词
直热式热泵热水机
循环式热泵热水机
除霜
高温可靠性
direct-heating heat pump water heater
recycled-heating heat pump water heater
defrosting
high-temperature reliability
