OPERATIONAL METHOD OF REFRIGERATOR

Japanese Patent JP2015148429

A

PROBLEM TO BE SOLVED: To provide an operational method of refrigerator enabling an efficiency and an output (capability) of a vapor compression type refrigerating cycle to be improved without impairing stability of the refrigerating cycle when the refrigerating cycle is utilized as a heat pump for heating feed water.SOLUTION: When a difference between a heat medium inlet temperature for a subcooler 6 and a refrigerant condensed liquid outlet temperature from a liquid receiver 5 is 5K or more, the subcooler 6 for performing a sensible heat exchange between the refrigerant condensed liquid and heat media is installed in refrigerant piping between the liquid receiver and an expansion valve 7, there are provided first heat medium piping for flowing heat medium into the subcooler 6, second heat medium piping for transporting the heat medium heated by the refrigerant condensed liquid from the liquid receiver up to a condenser and third heat medium piping for flowing out the heat medium heated by the refrigerant gas at the condenser. With this arrangement, the sensitive heat exchange and the latent heat exchange at the refrigerant side during a heat exchange between the heat medium and the refrigerant are separated and the latent heat exchange by the condenser is carried out after performing the sensitive heat exchange by the subcooler 6.

WO/1987/003357	THERMALLY POWERED ENGINE
JP4583230	Low temperature showcase
WO/2014/155622	HEAT PUMP DEVICE, AIR CONDITIONER, AND FREEZER

NINOMIYA TATSU

JP2014023134A

August 20, 2015

February 10, 2014

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TOYO SEISAKUSHO KK

F25B1/00; F25B43/00

JP2012247156A	2012-12-13
JP2011089707A	2011-05-06
JP2009127938A	2009-06-11
JP2010014374A	2010-01-21
JP2007232357A	2007-09-13

Kiyoshi Oka

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