Refrigerant leak detection system, heat pump, heat pump system, and refrigerant leak notification system

摘要

PROBLEM TO BE SOLVED: To provide a refrigerant leakage detection system and the like which can easily identify a location of refrigerant leakage. A detection system (30) detects a refrigerant leak from the periphery of a joint (80) in an air conditioning facility including a one-side pipe (83), another side pipe (84), and a joint (80) connecting the one-side pipe (83) and the other-side pipe (84). .. The detection system 30 is provided with a state change section that changes state when refrigerant and oil leak from the peripheral section, and a control section that specifies the state of the state change section. The state changing portion is formed of, for example, a surface on the peripheral portion 88 side that covers at least a part of the peripheral portion in the film 51 formed of a photoconductor whose resistance value changes based on the amount of received light. You can [Selection diagram] Fig. 4