Heat recovery refrigeration device

Abstract

A heat recovery refrigeration device includes a compressor, a plurality of heat source side heat exchangers, and a plurality of usage side heat exchangers. The heat exchangers are switchable between individually functioning as an evaporator or a radiator. The heat recovery refrigeration device performs heat recovery between the usage side heat exchangers by sending the refrigerant from at least one of the usage side heat exchangers functioning as a radiator to at least one of the usage side heat exchangers functioning as an evaporator. The plurality of heat source side heat exchangers include a first heat source side heat exchanger and a second heat source side heat exchanger. The second heat source side heat exchanger has a heat exchange capacity 1.8 times to 4.0 times of the first heat source side heat exchanger.

1 . A heat recovery refrigeration device comprising:
 a compressor;   a plurality of heat source side heat exchangers switchable between individually functioning as an evaporator or a radiator of refrigerant; and   a plurality of usage side heat exchangers switchable between individually functioning as an evaporator or a radiator of the refrigerant,   the heat recovery refrigeration device being configured to perform heat recovery between the usage side heat exchangers by sending the refrigerant from at least one of the usage side heat exchangers functioning as a radiator of the refrigerant to at least one of the usage side heat exchangers functioning as an evaporator of the refrigerant,   the plurality of heat source side heat exchangers including a first heat source side heat exchanger and a second heat source side heat exchanger, the second heat source side heat exchanger having a heat exchange capacity 1.8 times to 4.0 times of the first heat source side heat exchanger.   
     
     
         2 . The heat recovery refrigeration device according to  claim 1 , wherein
 the first heat source side heat exchanger is arranged more to an upper side than the second heat source side heat exchanger.   
     
     
         3 . The heat recovery refrigeration device according to  claim 1 , wherein
 a first heat source side flow amount adjustment valve is connected to a liquid side of the first heat source side heat exchanger, the first heat source side flow amount adjustment valve having an adjustable opening,   a second heat source side flow amount adjustment valve is connected with a liquid side of the second heat source side heat exchanger, the second heat source side flow amount adjustment valve having an adjustable opening, and   a rated Cv value of the second heat source side flow amount adjustment valve is larger than a rated Cv of the first heat source side flow amount adjustment valve.   
     
     
         4 . The heat recovery refrigeration device according to  claim 1 , wherein
 a first header is provided on a gas side of the first heat source side heat exchanger, the first header merging and branching refrigerant between a plurality of heat transfer tubes of the first heat source side heat exchanger,   a second header is provided on a gas side of the second heat source side heat exchanger, the second header merging and branching refrigerant between a plurality of heat transfer tubes of the second heat source side heat exchanger, and   a flow path cross sectional area of the second header is larger than a flow path cross sectional area of the first header.   
     
     
         5 . The heat recovery refrigeration device according to  claim 2 , wherein
 a first heat source side flow amount adjustment valve is connected to a liquid side of the first heat source side heat exchanger, the first heat source side flow amount adjustment valve having an adjustable opening,   a second heat source side flow amount adjustment valve is connected with a liquid side of the second heat source side heat exchanger, the second heat source side flow amount adjustment valve having an adjustable opening, and   a rated Cv value of the second heat source side flow amount adjustment valve is larger than a rated Cv of the first heat source side flow amount adjustment valve.   
     
     
         6 . The heat recovery refrigeration device according to  claim 5 , wherein
 a first header is provided on a gas side of the first heat source side heat exchanger, the first header merging and branching refrigerant between a plurality of heat transfer tubes of the first heat source side heat exchanger,   a second header is provided on a gas side of the second heat source side heat exchanger, the second header merging and branching refrigerant between a plurality of heat transfer tubes of the second heat source side heat exchanger, and   a flow path cross sectional area of the second header is larger than a flow path cross sectional area of the first header.   
     
     
         7 . The heat recovery refrigeration device according to  claim 2 , wherein
 a first header is provided on a gas side of the first heat source side heat exchanger, the first header merging and branching refrigerant between a plurality of heat transfer tubes of the first heat source side heat exchanger,   a second header is provided on a gas side of the second heat source side heat exchanger, the second header merging and branching refrigerant between a plurality of heat transfer tubes of the second heat source side heat exchanger, and   a flow path cross sectional area of the second header is larger than a flow path cross sectional area of the first header.   
     
     
         8 . The heat recovery refrigeration device according to  claim 3 , wherein
 a first header is provided on a gas side of the first heat source side heat exchanger, the first header merging and branching refrigerant between a plurality of heat transfer tubes of the first heat source side heat exchanger,   a second header is provided on a gas side of the second heat source side heat exchanger, the second header merging and branching refrigerant between a plurality of heat transfer tubes of the second heat source side heat exchanger, and   a flow path cross sectional area of the second header is larger than a flow path cross sectional area of the first header.