Heat pump air-conditioning water heater suitable for cold region

• Main Authors: CHEN YANG, QU XINGYU, HUANG WULONG, FENG YE, ZHENG WEIHUA, LI MINGYUE, LIU DINGMING, JIA YUZHEN, WANG JIANGTAO, ZHANG ZIYU
• Format: Patent
• Language: Chinese; English
• Published: 21.03.2023
• Subjects: BLASTING; COMBINED HEATING AND REFRIGERATION SYSTEMS; FLUID HEATERS, e.g. WATER OR AIR HEATERS, HAVING HEATGENERATING MEANS, IN GENERAL; HEAT PUMP SYSTEMS; HEATING; LIGHTING; LIQUEFACTION SOLIDIFICATION OF GASES; MANUFACTURE OR STORAGE OF ICE; MECHANICAL ENGINEERING; RANGES; REFRIGERATION MACHINES, PLANTS OR SYSTEMS; REFRIGERATION OR COOLING; VENTILATING; WEAPONS

The utility model discloses a heat pump air-conditioning water heater suitable for a cold region, which relates to the technical field of heat pumps, comprises a compression system, a hot water system, an indoor heat exchange system and an outdoor heat exchange system, and is characterized in that branch pipelines are arranged among the compression system, the hot water system, the indoor heat exchange system and the outdoor heat exchange system for mutual connection; by flexibly utilizing switching of the valve group, mutual conversion of first-stage compression and second-stage compression of the compressor and switching of multiple modes are achieved according to different working conditions, so that different heat supply, heat supply and hot water requirements in winter and summer in cold regions are met at the same time; during heating in winter, the evaporation temperature of the heat exchanger can be increased through high-temperature hot water in the indoor water tank to conduct two-stage compression