Heat recovery multi-online cooling and heating switching device, multiple on-line and control method

• Main Authors: WU YUNDONG, HE JIANQI, LI XU, SUI ZHIWEI, GUO DEFANG, LIU ZHISHENG, MAO SHOUBO
• Format: Patent
• Language: Chinese; English
• Published: 19.02.2019
• 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 discloses a heat recovery multi-online cooling and heating switching device, multiple on-line and control method. One end of a plurality of high-voltage branch pipes of the cooling and heating switching device is connected with one end of a plurality of low-pressure branch pipes in a one-to-one correspondence mode, a plurality of connecting nodes are formed, the plurality of connecting nodes are connected with the air pipes of the indoor units in a one-to-one correspondence mode; and the other ends of the high-pressure branch pipes are connected with the high-pressure air pipes;the other ends of the plurality of low-pressure branch pipes are connected with the low-pressure air pipes; one end of a plurality of branch liquid pipes is connected with one end of a plurality of liquid distribution pipes in a one-to-one correspondence mode, a plurality of connecting nodes are formed, and the plurality of connecting nodes are in one-to-one correspondence with the liquid pipes ofthe plurality of indoor u