US 12,345,451 B2
Refrigeration system
Demao Yu, Qingyuan (CN); and Shuang Wu, Qingyuan (CN)
Assigned to York Guangzhou Air Conditioning and Refrigeration Co., Ltd., Qingyuan (CN); and Tyco Fire & Security GmbH, Neuhausen am Rheinfall (CH)
Appl. No. 17/311,276
Filed by York Guangzhou Air Conditioning and Refrigeration Co., Ltd., Qingyuan (CN); and Johnson Controls Technology Company, Auburn Hills, MI (US)
PCT Filed Aug. 1, 2019, PCT No. PCT/CN2019/098852
§ 371(c)(1), (2) Date Dec. 14, 2021,
PCT Pub. No. WO2020/113980, PCT Pub. Date Jun. 11, 2020.
Claims priority of application No. 201811482252.7 (CN), filed on Dec. 5, 2018.
Prior Publication US 2022/0099345 A1, Mar. 31, 2022
Int. Cl. F25B 41/20 (2021.01); F25B 13/00 (2006.01); F25B 41/24 (2021.01); F25B 41/40 (2021.01); F25B 45/00 (2006.01); F25B 49/02 (2006.01)
CPC F25B 41/20 (2021.01) [F25B 13/00 (2013.01); F25B 41/24 (2021.01); F25B 41/40 (2021.01); F25B 45/00 (2013.01); F25B 49/02 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A refrigeration system, wherein the refrigeration system comprises:
refrigeration system components comprising a compressor, a first heat exchanger, a second heat exchanger, a third heat exchanger, a first throttle valve and a second throttle valve;
connecting pipelines configured to connect the refrigeration system components and configured to combine the refrigeration system components in different ways to form a plurality of operating systems, wherein each operating system of the plurality of operating systems is different from one another;
a switch structure configured to connect the connecting pipelines to form an operating system of the plurality of operating systems and configured to select, from the first heat exchanger, the second heat exchanger and the third heat exchanger, two heat exchangers for connection into the operating system, and to isolate a non-selected heat exchanger from the operating system; and
a discharge path configured to be selectively arranged between the non-selected heat exchanger and a low-pressure side of the operating system; and
a control device configured to connect the non-selected heat exchanger to the low-pressure side of the operating system via the discharge path in response to:
a temperature of a medium that undergoes heat transfer with a refrigerant in the non-selected heat exchanger being lower than a saturation temperature of refrigerant in the non-selected heat exchanger; or
a temperature of an environment in which the non-selected heat exchanger is located being lower than the saturation temperature of refrigerant in the non-selected heat exchanger.