A SUPERCOOLED ICE COLD-STORAGE UNIT, AN AIR CONDITIONING SYSTEM USING THE SAME AND A CONTROL METHOD THEREOF

摘要

A supercooled ice cold-storage unit, an air conditioning system using the same and a control method thereof are disclosed. The supercooled ice cold-storage unit includes an ice storage device (61) and closed circulation pipelines passing through the supercooled ice storage unit (61). The closed circulation pipelines include an electric expansion valve (62); a first, a second, and a third electromagnetic valve (63, 64, 65). The electric expansion valve (62) is connected with the third electromagnetic valve (65) in parallel, and the first electromagnetic valve (63) is connected with the second electromagnetic valve (64) in parallel. The ice cold-storage unit further includes three outer contacts (67, 68, 69). The ice cold-storage unit is connected between a high-pressure liquid storage tank (5) and indoor units (7, 8) connected in parallel in the air conditioning system. The air conditioning system can be changed over among six different operating modes by adjusting the operating state of the respective valves in the air conditioning system.