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公开(公告)号:US20180066871A1
公开(公告)日:2018-03-08
申请号:US15559598
申请日:2016-03-28
发明人: Noriyuki MATSUKURA , Kenji UEDA , Naoki KOBAYASHI , Ryosuke SUEMITSU , Norihisa HORAGUCHI , Satoru OKAMOTO , Yoshio NISHIGUCHI
CPC分类号: F25B1/10 , C09K5/04 , C09K5/041 , C09K5/044 , C09K5/045 , C09K2205/126 , F04D17/12 , F25B1/053 , F25B43/003 , F25B45/00 , F25B2400/13
摘要: An object of the present invention is to provide a refrigerant circulation device and method that can suppress acid generation caused by decomposition of a refrigerant containing an HFO or HCFO. The refrigerant circulation device has a compressor, a condenser, expansion valves and an evaporator connected by a main pipe to form a refrigerant circulation circuit through which a refrigerant is circulated, the refrigerant circulation circuit being filled with a refrigerant containing a hydrofluoroolefin or a hydrochlorofluoroolefin having a carbon-carbon double bond within the molecular structure, wherein the refrigerant circulation device includes a drive that drives the compressor via a speed increaser, and a drive cooling unit that cools the drive with the refrigerant condensed in the condenser, and a desiccant that can trap moisture is disposed in the evaporator or the drive cooling unit.