REFRIGERATION DEVICE

Japanese Patent JP2015224832

A

PROBLEM TO BE SOLVED: To suppress degradation of a heating capacity by properly controlling a supercooling degree even when liquid pressure loss is large, in a refrigeration device in which an opening of a utilization-side flow rate adjustment valve is controlled on the basis of the supercooling degree of a refrigerant at an outlet of a utilization-side heat exchanger.SOLUTION: In an operation in which a heat source unit 2 having a receiver 28, and utilization units 3a-3d having utilization-side flow rate adjustment valves 51a-51d and utilization-side heat exchangers 52a-52d are connected through a refrigerant communication pipe 7, and the utilization-side heat exchangers are functioned as a radiator of a refrigerant, the receiver is provided with a receiver gas vent pipe 41 connecting an upper portion of the receiver and a suction side of a compressor 21, the receiver gas vent pipe is provided with a gas vent-side flow rate adjustment valve 42 capable of adjusting an opening, and the opening of the gas vent-side flow rate adjustment valve is controlled to satisfy a normal condition of control of supercooling degree in which the utilization-side flow rate adjustment valve implementing the control of supercooling degree, can control the supercooling degree.

SUZAKI MARI
OKA MASAHIRO
MINAMI JUNYA
OURA RYUTA

JP2014110074A

December 14, 2015

May 28, 2014

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DAIKIN IND LTD

F25B1/00; F25B5/02; F25B6/02; F25B13/00; F25B29/00; F25B43/00

JP2009115340A	2009-05-28
JP2006078026A	2006-03-23
JP2014167381A	2014-09-11
JP2009293899A	2009-12-17
JP2012180945A	2012-09-20
JP2006292212A	2006-10-26
JPH08254376A	1996-10-01
JPH11142001A	1999-05-28

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