-
公开(公告)号:US20110203299A1
公开(公告)日:2011-08-25
申请号:US13126046
申请日:2008-11-11
申请人: Li Jing , Shufu Ding , Haijun Li
发明人: Li Jing , Shufu Ding , Haijun Li
CPC分类号: F25B13/00 , F25B47/025 , F25B2313/02741 , F25B2400/0411 , F25B2400/13 , F25B2400/19
摘要: A heat pump system operable in a cooling mode, a heating mode and a defrost mode includes a refrigerant compressor (20), a reversing valve (30), a first heat exchanger (40) and a second heat exchanger (50) disposed in a refrigerant circuit, and a primary expansion valve (45) disposed in the refrigerant circuit between said first heat exchanger (40) and said second heat exchanger (50); said reversing valve (30) is positionable in a first position for operation of said heat pump system in the cooling mode or defrost mode and is positionable in a second position for operation of said heat pump system in the heating mode; a refrigerant bypass circuit establishes a refrigerant flow path from the refrigerant circuit at a first location upstream of said primary expansion valve (45) and downstream of said first heat exchanger (40) with respect to refrigerant flow in the defrost mode to a liquid reservoir (70) disposed in the refrigerant circuit at a second location downstream of said primary expansion valve (45) with respect to refrigerant flow in the defrost mode.
摘要翻译: 在冷却模式,加热模式和除霜模式下可操作的热泵系统包括:制冷剂压缩机(20),换向阀(30),第一热交换器(40)和第二热交换器(50) 制冷剂回路和设置在所述第一热交换器(40)和所述第二热交换器(50)之间的制冷剂回路中的一级膨胀阀(45)。 所述换向阀(30)可定位在第一位置,用于在制冷模式或除霜模式下操作所述热泵系统,并且可定位在第二位置,用于在加热模式下操作所述热泵系统; 制冷剂旁路回路在所述主膨胀阀(45)的上游的第一位置和所述第一热交换器(40)的下游,相对于除霜模式下的制冷剂流向制冷剂回路建立制冷剂流路, 70),其设置在所述主膨胀阀(45)的下游的第二位置处,与所述除霜模式下的制冷剂流相对。
-
公开(公告)号:US20100204840A1
公开(公告)日:2010-08-12
申请号:US12601909
申请日:2008-05-22
申请人: Wenzhe Sun , Shufu Ding , Weijiang Zhang , Yongliang Hu
发明人: Wenzhe Sun , Shufu Ding , Weijiang Zhang , Yongliang Hu
CPC分类号: F25B49/02 , F25B41/062 , F25B2600/21 , F25B2600/2513
摘要: Methods and systems are described for controlling an expansion valve in large chiller refrigerant loops that employ a modified fuzzy logic control system that modulates an electric expansion valve for controlling cooling capacity.
摘要翻译: 描述了用于控制大型冷却器制冷剂回路中的膨胀阀的方法和系统,其使用调节用于控制冷却能力的电动膨胀阀的改进的模糊逻辑控制系统。
-