【摘 要】
：
本文介绍了普通单级压缩空气源热泵在寒冷地区采暖应用存在的主要问题,以及采用转速可控型双级压缩转子式热风型低环境温度空气源热泵技术原理.后者采暖性能指标良好,无辅助
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本文介绍了普通单级压缩空气源热泵在寒冷地区采暖应用存在的主要问题,以及采用转速可控型双级压缩转子式热风型低环境温度空气源热泵技术原理.后者采暖性能指标良好,无辅助电加热情况下,室外－20℃时COP可达到2.0以上,－30℃时可正常运行.本文针对该热泵用于北京农村地区采暖的可行性,建立示范农宅,测试了实际采暖效果和电功率、电耗.测试结果表明,热风型低环境温度空气源热泵在北京冬季室外气温条件下正常运行,并且营造了适宜的房间温度.保温农宅单位面积采暖季电耗仅为18.40kWh/m2,单位面积采暖季电费为5.27元/m2.即使是未保温农宅在热泵连续运行的情况下,单位面积采暖季电耗也仅为33.74kWh/m2,单位面积采暖季电费为11.89元/m2.因此,该技术是一种非常好的可作为我国北方寒冷地区替代燃煤采暖的主要采暖方式.
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