Micro-channel heat exchanger and heat pump air conditioner

• Main Author: JIANG JIAYUAN
• Format: Patent
• Language: Chinese; English
• Published: 08.03.2022
• Subjects: BLASTING; COMBINED HEATING AND REFRIGERATION SYSTEMS; DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION; HEAT EXCHANGE IN GENERAL; 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 provides a micro-channel heat exchanger and a heat pump air conditioner, the micro-channel heat exchanger comprises a heat exchange core part, the heat exchange core part is provided with a plurality of micro-channel flat pipes arranged in parallel, and each micro-channel flat pipe extends in a snake shape and is provided with a first port and a second port; a first port of each micro-channel flat pipe is communicated with a gas collecting pipe, and a second port of each micro-channel flat pipe is communicated with a liquid collecting pipe assembly. According to the heat exchanger, the multiple micro-channel flat pipes which extend in the snakelike shape and are connected between the gas collecting pipe and the liquid collecting pipe assembly in parallel are adopted, the flowing drift diameter of a refrigerant in the heat exchanger can be remarkably increased, the pressure drop of the heat exchanger is reduced, the system power consumption is reduced, and therefore the heat exchange performance