Drier and refrigerating cycle

Abstract

A drier for a refrigerating cycle includes an adsorbent adsorbing moisture contained in refrigerant. The refrigerant has a molecular formula of C 3 H m F n (m=1-5, n=1-5, and m+n=6) and has one double bond in a molecular structure. The refrigerating cycle is a vapor compression refrigerating cycle through which the refrigerant flows. The adsorbent has adsorption characteristics in which an increasing degree of a moisture-adsorbing rate is increased as a relative humidity is increased.

1 . A drier for a refrigerating cycle comprising:
 an adsorbent adsorbing moisture contained in refrigerant, the refrigerant having a molecular formula of C 3 H m F n  (m=1−5, n=1−5, and m+n=6) and having one double bond in a molecular structure, the refrigerating cycle being a vapor compression refrigerating cycle through which the refrigerant flows, wherein   the adsorbent has adsorption characteristics in which an increasing degree of a moisture-adsorbing rate is increased as a relative humidity is increased.   
     
     
         2 . The drier according to  claim 1 , wherein
 the adsorbent is made of water-adsorbing resin having high water-adsorbing property.   
     
     
         3 . The drier according to  claim 2 , further comprising:
 an accommodation bag accommodating the water-adsorbing resin, wherein the accommodation bag has a mesh state that allows the moisture to permeate the accommodation bag.   
     
     
         4 . The drier according to  claim 2 , further comprising:
 an accommodation bag accommodating the water-adsorbing resin, wherein the accommodation bag has a film state that allows a water vapor to permeate the accommodation bag.   
     
     
         5 . The drier according to  claim 2 , further comprising:
 an accommodation bag accommodating the water-adsorbing resin, wherein the accommodation bag is made of felt.   
     
     
         6 . The drier according to  claim 1 , wherein
 the adsorbent is made of a fiber having high moisture-adsorbing property.   
     
     
         7 . The drier according to  claim 1 , wherein
 the adsorbent is made of a fiber having high water-adsorbing property.   
     
     
         8 . The drier according to  claim 1 , wherein
 the refrigerant is HFO-1234yf.   
     
     
         9 . A refrigerating cycle comprising:
 a compressor that compresses and discharges refrigerant;   a condenser that condenses the refrigerant flowing out of the compressor;   a decompressor that decompresses the refrigerant flowing out of the condenser;   an evaporator that evaporates the refrigerant decompressed by the decompressor; and   a drier having an adsorbent that adsorbs moisture contained in the refrigerant, wherein   the adsorbent has adsorption characteristics in which an increasing degree of a moisture-adsorbing rate is increased as a relative humidity is increased, and   the drier is located in a refrigerant passage extending from a refrigerant outlet of the decompressor to a refrigerant inlet of the compressor, at a position where the refrigerant having liquid phase exists.   
     
     
         10 . The refrigerating cycle according to  claim 9 , wherein
 the refrigerant has a molecular formula of C 3 H m F n  (m=1−5, n=1−5, and m+n=6) and has one double bond in a molecular structure.   
     
     
         11 . The refrigerating cycle according to  claim 9 , further comprising:
 an accumulator that separates the refrigerant flowing out of the evaporator into gas refrigerant and liquid refrigerant and that discharges the gas refrigerant into the refrigerant inlet of the compressor, and   the drier is arranged inside of the accumulator.   
     
     
         12 . The refrigerating cycle according to  claim 9 , wherein
 the drier is located in a refrigerant passage extending from the refrigerant outlet of the decompressor to a refrigerant inlet of the evaporator.   
     
     
         13 . The refrigerating cycle according to  claim 9 , wherein
 the drier is arranged inside of the evaporator.   
     
     
         14 . A refrigerating cycle comprising:
 a condenser that condenses refrigerant;   a receiver that separates the refrigerant flowing out of the condenser into gas refrigerant and liquid refrigerant and that discharges the liquid refrigerant; and   a drier having an adsorbent that adsorbs moisture contained in the refrigerant, wherein   the refrigerant has a molecular formula of C 3 H m F n  (m=1−5, n=1−5, and m+n=6) and has one double bond in a molecular structure,   the drier is arranged inside of the receiver, and   the adsorbent has adsorption characteristics in which an increasing degree of a moisture-adsorbing rate is increased as a relative humidity is increased.   
     
     
         15 . The refrigerating cycle according to  claim 14 , wherein
 the receiver has   a based cylindrical tank portion extending in an up-and-down direction and having an opening at a lower end, and   a cover portion closing the opening,   the tank portion has a refrigerant outlet and a refrigerant inlet that is located on an upper side of the refrigerant outlet in a manner that the refrigerant flows from the upper side to a lower side, and   the drier is located on the lower side in the tank portion.   
     
     
         16 . The refrigerating cycle according to  claim 15 , wherein
 the drier is integrated with the cover portion.   
     
     
         17 . The refrigerating cycle according to  claim 9 , wherein the adsorbent is made of water-adsorbing resin having high water-adsorbing property. 
     
     
         18 . The refrigerating cycle according to  claim 17 , further comprising:
 an accommodation bag accommodating the water-adsorbing resin, wherein the accommodation bag has a mesh state that allows the moisture to permeate the accommodation bag.   
     
     
         19 . The refrigerating cycle according to  claim 17 , further comprising:
 an accommodation bag accommodating the water-adsorbing resin, wherein the accommodation bag has a film state that allows a water vapor to permeate the accommodation bag.   
     
     
         20 . The refrigerating cycle according to  claim 17 , further comprising:
 an accommodation bag accommodating the water-adsorbing resin, wherein the accommodation bag is made of felt.   
     
     
         21 . The refrigerating cycle according to  claim 9 , wherein
 the adsorbent is made of a fiber having high moisture-adsorbing property.   
     
     
         22 . The refrigerating cycle according to  claim 9 , wherein
 the adsorbent is made of a fiber having high water-adsorbing property.   
     
     
         23 . The refrigerating cycle according to  claim 9 , wherein
 the refrigerant is HFO-1234yf.   
     
     
         24 . The refrigerating cycle according to  claim 9 , wherein
 the refrigerant flows through a refrigerant pipe, and   a part of the refrigerant pipe is made of a material having a moisture permeability.