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Title:
REFRIGERATION DEVICE
Document Type and Number:
Japanese Patent JP2014224271
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a refrigeration device capable of suppressing degradation of refrigeration oil and corrosion of an expansion valve.SOLUTION: A refrigeration device 1 includes: a compressor 2; condensers 4 and 6; an expansion mechanism 5; and evaporators 6 and 4. The refrigeration device 1 uses refrigerant including R32 and refrigeration oil for lubricating the compressor 2. Acid scavenger at an addition amount of 1.0 weight % to 5.0 weight % is mixed into the refrigeration oil. An amount of air mixed into the refrigeration device 1 is controlled to be equal to or smaller than 500 ppm with respect to an amount of filled refrigerant. An amount of water mixed into the refrigeration device 1 is controlled to be equal to or smaller than 300 ppm with respect to the amount of the filled refrigerant. A discharge gas temperature of the refrigeration device 1 is controlled to be equal to or lower than 120°C.

Inventors:
TANAKA MASARU
MATSUURA HIDEKI
TAIRA SHIGEJI
NAKAI AKINORI
Application Number:
JP2014173293A
Publication Date:
December 04, 2014
Filing Date:
August 27, 2014
Export Citation:
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Assignee:
DAIKIN IND LTD
International Classes:
C10M169/04; C09K5/04; C10M105/38; C10M107/24; F25B1/00
Domestic Patent References:
JP2005248773A2005-09-15
JPH06240277A1994-08-30
JP2002129178A2002-05-09
JP2003097441A2003-04-03
JP2011195631A2011-10-06
JP2010235960A2010-10-21
JPH10185369A1998-07-14
JP2001089777A2001-04-03
JP2011106770A2011-06-02
JPH0688087A1994-03-29
JP2001227827A2001-08-24
JP2009191212A2009-08-27
JP2011162799A2011-08-25
JPH04183788A1992-06-30
Foreign References:
WO2012104893A12012-08-09
WO2012086518A12012-06-28
WO2012026213A12012-03-01
Attorney, Agent or Firm:
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