-
公开(公告)号:US06510698B2
公开(公告)日:2003-01-28
申请号:US09572300
申请日:2000-05-17
申请人: Tomohiko Kasai , Mitsunori Kurachi , Hidekazu Tani , Moriya Miyamoto , Yoshihiro Sumida , Takashi Ikeda , Toshihiro Kikukawa , Shohichiroh Masuda , Hirofumi Koge
发明人: Tomohiko Kasai , Mitsunori Kurachi , Hidekazu Tani , Moriya Miyamoto , Yoshihiro Sumida , Takashi Ikeda , Toshihiro Kikukawa , Shohichiroh Masuda , Hirofumi Koge
IPC分类号: F25B4500
CPC分类号: F25B47/00 , F25B13/00 , F25B31/002 , F25B45/00 , F25B2313/023 , F25B2313/025 , F25B2313/0272 , F25B2313/02741 , F25B2400/18 , F25B2500/01
摘要: A heat source unit and refrigerant used in an existing refrigeration system are replaced with new refrigerant and a new heat source unit which employs the new refrigerant and is equipped with an oil separator and extraneous-matter trapping device. An indoor unit of the existing refrigeration system may be used, in its present form, or replaced with a new indoor unit. Further, connecting pipes used for the existing refrigeration are reused. After replacement of refrigerant, the refrigeration system performs an ordinary operation after having performed a cleaning operation. The extraneous-matter trapping device is provided in a refrigerant pipe close to the heat source unit or in a bypass channel connected to the refrigerant pipe close to the heat source unit. Alternatively, only the heat source unit of the existing refrigeration system is replaced with a new one, and there is employed refrigeration oil which has no mutual solubility with respect to HFC or has very low mutual solubility.
摘要翻译: 在现有的制冷系统中使用的热源单元和制冷剂被新的制冷剂和采用新的制冷剂的新的热源单元替换,并且配备有油分离器和外来物质捕集装置。 现有的制冷系统的室内单元可以以现在的形式使用,或者用新的室内单元替代。 此外,用于现有制冷的连接管被重复使用。 在更换制冷剂之后,在执行清洁操作之后,制冷系统进行常规操作。 外部物质捕集装置设置在靠近热源单元的制冷剂管道中或与靠近热源单元的制冷剂管道连接的旁通通道中。 或者,只有现有制冷系统的热源单元被新的替代,并且使用与HFC相互溶解性或相互溶解度非常低的冷冻机油。