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1. (WO2018025533) REFRIGERATION CYCLE DEVICE

Pub. No.:    WO/2018/025533    International Application No.:    PCT/JP2017/023397
Publication Date: Fri Feb 09 00:59:59 CET 2018 International Filing Date: Tue Jun 27 01:59:59 CEST 2017
IPC: F25B 49/02
G01N 27/22
Applicants: DENSO CORPORATION
株式会社デンソー
Inventors: MIDORIKAWA Maro
緑川 麿
Title: REFRIGERATION CYCLE DEVICE
Abstract:
A refrigeration cycle device (10) is provided with a compressor (11), a radiator (12), a decompression mechanism (13), an evaporator (14), and a water detection device (20) that detects a change of the quantity of water in an oil-containing refrigerant circulating in a cycle. The water detection device has, in a housing (21) forming a refrigerant inflow space (211) therein, a pair of electrodes (22, 23), at least respective parts of which are disposed at a predetermined interval. Furthermore, the water detection device has a water absorbing member (24), which is disposed between the pair of electrodes, and which is configured by containing a water absorbing substance (241) that changes electrostatic capacitance in accordance with the water absorption quantity. The water detection device also has a measuring unit (25) that quantitatively measures the electrostatic capacitance between the pair of electrodes as a physical quantity correlated with the quantity of the water in the refrigerant.