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Title:
METHOD FOR FILLING MIXED REFRIGERANT CONTAINING 2,3,3,3-TETRAFLUOROPROPENE
Document Type and Number:
WIPO Patent Application WO/2014/038604
Kind Code:
A1
Abstract:
A method for filling a mixed refrigerant, characterized in that when filling a mixed refrigerant containing HFC-32 and HFO-1234yf, and in which liquid phase HFC-32 is present in an amount of 10-90wt% with respect to a total of 100wt% of HFC-32 and HFO-1234yf, from a supply container into destination containers and devices, the mixture ratio of HFC-32 in the mixed refrigerant in the supply container is maintained within the range of the target composition (x) of HFC-32 ±a wt% from the start until the completion of filling, and the mixture ratio of liquid-phase HFC-32 in the mixed refrigerant in the supply container immediately prior to filling (initial composition)) is set to x+y1 (minimum value) to x+a (maximum value) wt% (±a: setting tolerance (a≧0) x: target composition (10≦x≦90, except for a range where y1>a). y1: the lower limit of deviation from the target composition in the initial composition, and represented by the following formula (1). 1000y1 = L1x3 + M1x2+ N1x + P1 (1), L1 = 0.0002a+ 0.016, M1= 0.072a+ 3.4761, N1 = 7.914a + 187.52, P1 = 1194.8a - 9.58)

Inventors:
KUROKI HITOMI
TSUCHIYA TATSUMI
YAMADA YASUFU
SHIBANUMA TAKASHI
Application Number:
PCT/JP2013/073851
Publication Date:
March 13, 2014
Filing Date:
September 04, 2013
Export Citation:
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Assignee:
DAIKIN IND LTD (JP)
International Classes:
F25B1/00; C09K5/04; F25B45/00
Domestic Patent References:
WO2011084813A12011-07-14
WO2009110228A12009-09-11
Foreign References:
JP2012509390A2012-04-19
JP2009222360A2009-10-01
JP2011525204A2011-09-15
JP2010047754A2010-03-04
JP2011525204A2011-09-15
JP2011522947A2011-08-04
JPH10197108A1998-07-31
JP3186065B22001-07-11
Other References:
See also references of EP 2894209A4
Attorney, Agent or Firm:
SAEGUSA & PARTNERS (JP)
Patent business corporation 3 Edakuni [Hajime] patent firm (JP)
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