US 12,339,072 B2
Heat exchanging system and method for determining if the flow of cooling medium is too low
Min Yang, Shanghai (CN); Lingxiao Zhao, Shanghai (CN); and Tao Shu, Shanghai (CN)
Assigned to CARRIER CORPORATION, Palm Beach Gardens, FL (US)
Filed by Carrier Corporation, Palm Beach Gardens, FL (US)
Filed on Jan. 13, 2023, as Appl. No. 18/154,063.
Claims priority of application No. 202210047176.7 (CN), filed on Jan. 17, 2022.
Prior Publication US 2023/0228504 A1, Jul. 20, 2023
Int. Cl. F28F 27/00 (2006.01); F25B 49/02 (2006.01)
CPC F28F 27/00 (2013.01) [F25B 49/02 (2013.01); F25B 2700/13 (2013.01); F25B 2700/2103 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A heat exchange system comprising:
a refrigerant flow path in which refrigerant circulates and a compressor is included;
a cooling medium flow path in which cooling medium circulates; and
a heat exchanger connected to both the refrigerant flow path and the cooling medium flow path so that the refrigerant and the cooling medium exchange heat in the heat exchanger, wherein the heat exchange system further comprises a first temperature sensor arranged at a cooling medium inlet of the heat exchanger, a second temperature sensor at a cooling medium outlet of the heat exchanger, and a controller in communication with the first temperature sensor and the second temperature sensor, wherein the controller is configured to determine whether flow of cooling medium in the heat exchanger is below a flow threshold based on a temperature difference sensed by the first temperature sensor and the second temperature sensor during operation of the heat exchange system;
wherein the controller is further configured to determine whether the flow of cooling medium in the heat exchanger is below the flow threshold based on ambient temperature and speed of the compressor.