空气源热泵机组除霜技术探讨
Discussion on defrosting technique for air-source heat pump units
摘要：
分析了空气源热泵产品在北方地区应用受限制的原因。研究了空气源热泵产品的结霜条件、制热效率和性能系数等，提出了改进措施。研制了低环温型空气源热泵空调机组，测试数据表明，该机组在北方地区具有较好的制热效果。
关键词：空气源热泵,空调热泵热水器,低环境温度
Abstract：
Analyses the causes for limited application of air-source heat pump units in northern China. Studies the frosting conditions, heating efficiency and coefficient of performance and proposes improving measures. Develops an air-source heat pump unit for low environmental temperature, and the test results show that the unit has good heating effects in the north region.
Keywords:air-source heat pump, air conditioning heat pump water heater, low environmental temperature