Parallel overlapping type heat pump system

• Main Authors: HUANG JIAHAO, GAO XIANG, LIU YUANHUI, LIN SHUBIN, WU DONGHUA, TANG WENHUI
• Format: Patent
• Language: Chinese; English
• Published: 15.05.2018
• Subjects: BLASTING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; HEATING; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; REFRIGERATION MACHINES, PLANTS OR SYSTEMS; REFRIGERATION OR COOLING; WEAPONS

The invention relates to the field of heat pumps, and discloses a parallel overlapping type heat pump system. The parallel overlapping type heat pump system comprises a plurality of defrosting/heatingbranches, and after being connected in parallel, the multiple defrosting/heating branches are sequentially connected with a first direction control valve, a heat exchange assembly and a second direction control valve in series to form a defrosting/heating circulation loop. The defrosting/heating branches comprise compressors, heat exchangers and mode switching assemblies, all of which are sequentially connected in series. According to the provided parallel overlapping type heat pump system, when a heat pump conducts defrosting, the flow of a refrigerant flowing into an evaporator can be guaranteed, and the evaporator defrosting efficiency of the evaporator is improved. 本发明涉及热泵领域，公开了种并联复叠式热泵系统，包括多条除霜/制热支路，多条所述除霜/制热支路并联后与第方向控制阀、热交换组件、第二方向控制阀依次串联连接形成除霜/制热循环回路，所述除霜/制热支路包括依次串联的压缩机、换热器和模式切换组件。本发明提供种并联复叠式热泵系统，令热泵进行除霜时，能