PROBLEM TO BE SOLVED: To provide a refrigerant leakage detection device capable of determining whether or not refrigerant leakage is abnormal leakage, and a refrigeration cycle device.SOLUTION: A refrigerant leakage detection device 30 includes a first leakage amount calculation section 30a for calculating a leakage amount of a refrigerant in a circulation circuit 200 on the basis of a refrigerant state amount including a temperature and a pressure of the refrigerant circulating in the circulation circuit 200. The refrigerant leakage detection device 30 also includes a second leakage amount calculation section 30b for calculating a leakage amount of the refrigerant on the basis of an environment state amount including a temperature around the circulation circuit 200. The refrigerant leakage detection device 30 further includes an abnormality determination section 30c for determining whether or not a leakage state of the refrigerant is an abnormal leakage state by comparing a first refrigerant leakage amount CL1 calculated by the first leakage amount calculation section 30a with a second refrigerant leakage amount CL2 calculated by the second leakage amount calculation section 30b.SELECTED DRAWING: Figure 3
【課題】冷媒漏れが異常漏れであるか否かを判定可能な冷媒漏れ検知装置および冷凍サイクル装置を提供する。【解決手段】冷媒漏れ検知装置30は、循環回路200を循環する冷媒の温度、圧力を含む冷媒状態量に基づいて、循環回路200における冷媒の漏れ量を算出する第1漏れ量算出部30aを備える。また、冷媒漏れ検知装置30は、循環回路200の周囲の温度を含む環境状態量に基づいて冷媒の漏れ量を算出する第2漏れ量算出部30bを備える。さらに、冷媒漏れ検知装置30は、第1漏れ量算出部30aで算出された第1冷媒漏れ量CL1と第2漏れ量算出部30bで算出された第2冷媒漏れ量CL2とを比較して、冷媒の漏れ状態が異常漏れ状態であるか否かを判定する異常判定部30cを備える。【選択図】図3
REFRIGERANT LEAKAGE DETECTION DEVICE AND REFRIGERATION CYCLE DEVICE
冷媒漏れ検知装置、冷凍サイクル装置
2018-11-15
Patent
Electronic Resource
Japanese
IPC: | F25B Kältemaschinen, Kälteanlagen oder Kälteverfahren , REFRIGERATION MACHINES, PLANTS, OR SYSTEMS / B60H ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES , Anordnung oder Einbau der Heizung, Kühlung, Lüftung oder anderer Luftbehandlungsvorrichtungen für die Fahrzeugräume für Reisende oder Fracht / F24F Klimatisierung , AIR-CONDITIONING |