摘要
对现有城市原生污水源热泵机组当前的技术状况与存在的问题进行分析,并进行了改进,主要特色是:1)制冷剂侧切换污水源热泵系统;2)换热器采用蒸发、冷凝两用换热器;3)污水可直接进入换热器。同时,将变频螺杆压缩机及压缩机可变内容积比等重要技术应用到改进的机组中,并制作了污水源热泵机组样机。通过权威机构验证,污水源热泵机组处于名义制冷与制热工况下的满负荷运行性能卓越,产品优势明显。
Some improvements were carried out on the urban sewage source heat pump unit by the analysis of the current technical conditions and existing problems.Main features of the improved units are as follows： 1）refrigerants side switch sewage source heat pump system,2）dual-purpose heat exchange for evaporating and condensing,3） wastewater can enter the unit directly.At the same time,some important techniques,such as inverter screw compressor and variable compressor inner volume ratio,are used to the improved unit.From the authoritative organization＇s test,the improved sewage-source heat pump unit has an excellence performance in in the nominal cooling and heating conditions.
出处
《制冷空调与电力机械》
2011年第5期7-10,共4页
Refrigeration Air Conditioning & Electric Power Machinery
关键词
污水源热泵
制冷剂侧切换
两用换热器
能效比
sewage source heat pump
refrigerants side switch
dual-purpose heat exchange
COP
