Refrigerant cycle apparatus

Abstract

There is provided a refrigerant cycle apparatus capable of suppressing, even when a refrigerant containing CF3I is used, corrosion of a component of a refrigerant circuit due to the refrigerant containing CF3I. A refrigerant cycle apparatus includes a refrigerant circuit in which a refrigerant containing CF3I circulates, the refrigerant circuit including a compressor, an expansion valve, an outdoor heat exchanger, and an indoor heat exchanger that are connected to each other. The refrigerant circuit includes a component to be in contact with the refrigerant. At least a surface of the component to be in contact with the refrigerant is formed by a corrosion resistance material that contains at least one or more selected from a metal in which the percentage of zinc is 10 wt % or less, a resin other than nylon 66, and carbon.

1 . A refrigerant cycle apparatus including a refrigerant circuit in which a refrigerant containing CF 3 I circulates, the refrigerant circuit comprising a compressor, an expansion valve, and a heat exchanger that are connected to each other,
 wherein the refrigerant circuit includes a component to be in contact with the refrigerant, and   wherein at least a surface of the component to be in contact with the refrigerant is formed by a corrosion resistance material that contains at least one or more selected from the group consisting of a metal in which a percentage of zinc is 10 wt % or less, a resin other than nylon 66, and carbon.   
     
     
         2 . The refrigerant cycle apparatus according to  claim 1 ,
 wherein the component is at least any of a balance weight included in the compressor, a needle included in the expansion valve, a heat transfer tube included in the heat exchanger, a refrigerant pipe, and a flare nut that connects the refrigerant pipe, and   wherein the corrosion resistance material is a metal in which the percentage of zinc is 10 wt % or less.   
     
     
         3 . The refrigerant cycle apparatus according to  claim 2 ,
 wherein the component is the balance weight included in the compressor, and   wherein the corrosion resistance material is a copper alloy containing 0.2 wt % or more and 1.0 wt % or less of tin or aluminum, or stainless steel.   
     
     
         4 . The refrigerant cycle apparatus according to  claim 2 ,
 wherein the component is the needle included in the expansion valve, and   wherein the corrosion resistance material is a copper alloy containing 0.2 wt % or more and 1.0 wt % or less of tin or aluminum, or stainless steel.   
     
     
         5 . The refrigerant cycle apparatus according to  claim 1 ,
 wherein the component is a bearing of the compressor, and   wherein the corrosion resistance material is any of carbon, a polyimide resin, and a polyamidimide resin.   
     
     
         6 . The refrigerant cycle apparatus according to  claim 1 ,
 wherein the refrigerant circuit includes a four-way switching valve,   wherein the components is a valve body included in the four-way switching valve, and   wherein the corrosion resistance material is a resin that contains at least one selected from the group consisting of PBT, PET, PTFE, and PPS.   
     
     
         7 . The refrigerant cycle apparatus according to  claim 1 ,
 wherein an air amount is 10 Torr or less and a moisture amount is 500 ppm or less in an inside of the refrigerant circuit.   
     
     
         8 . The refrigerant cycle apparatus according to  claim 1 , further comprising a controller that controls the compressor such that a temperature of a discharge refrigerant that is discharged from the compressor becomes 100° C. or less. 
     
     
         9 . The refrigerant cycle apparatus according to  claim 1 ,
 wherein an ether oil or an ester oil is used as a refrigerating-machine oil.   
     
     
         10 . The refrigerant cycle apparatus according to  claim 9 ,
 wherein the refrigerating-machine oil contains at least one selected from the group consisting of an extreme pressure agent, an acid scavenger, and an antioxidant.   
     
     
         11 . The refrigerant cycle apparatus according to  claim 2 ,
 wherein an air amount is 10 Torr or less and a moisture amount is 500 ppm or less in an inside of the refrigerant circuit.   
     
     
         12 . The refrigerant cycle apparatus according to  claim 3 ,
 wherein an air amount is 10 Torr or less and a moisture amount is 500 ppm or less in an inside of the refrigerant circuit.   
     
     
         13 . The refrigerant cycle apparatus according to  claim 4 ,
 wherein an air amount is 10 Torr or less and a moisture amount is 500 ppm or less in an inside of the refrigerant circuit.   
     
     
         14 . The refrigerant cycle apparatus according to  claim 5 ,
 wherein an air amount is 10 Torr or less and a moisture amount is 500 ppm or less in an inside of the refrigerant circuit.   
     
     
         15 . The refrigerant cycle apparatus according to  claim 6 ,
 wherein an air amount is 10 Torr or less and a moisture amount is 500 ppm or less in an inside of the refrigerant circuit.   
     
     
         16 . The refrigerant cycle apparatus according to  claim 2 , further comprising a controller that controls the compressor such that a temperature of a discharge refrigerant that is discharged from the compressor becomes 100° C. or less. 
     
     
         17 . The refrigerant cycle apparatus according to  claim 3 , further comprising a controller that controls the compressor such that a temperature of a discharge refrigerant that is discharged from the compressor becomes 100° C. or less. 
     
     
         18 . The refrigerant cycle apparatus according to  claim 4 , further comprising a controller that controls the compressor such that a temperature of a discharge refrigerant that is discharged from the compressor becomes 100° C. or less. 
     
     
         19 . The refrigerant cycle apparatus according to  claim 5 , further comprising a controller that controls the compressor such that a temperature of a discharge refrigerant that is discharged from the compressor becomes 100° C. or less. 
     
     
         20 . The refrigerant cycle apparatus according to  claim 6 , further comprising a controller that controls the compressor such that a temperature of a discharge refrigerant that is discharged from the compressor becomes 100° C. or less.