Dry cleaner and drying machine

Abstract

An object is to provide a dry cleaner in which an installing operation is facilitated and in which environments are taken into consideration, and the dry cleaner rotates a drum containing clothing and successively executes a washing step using a washing liquid, a dewatering step, and a drying step. Heating and cooling units for executing the respective steps comprise a heat pump device, the washing liquid is heated by the heat pump device using carbon dioxide as a refrigerant of a refrigerant circuit constituting the heat pump device, the washing liquid is cooled by the heat pump device, air supplied to the drum in the drying step is heated by the heat pump device, and the air discharged from the drum in the drying step is cooled by the heat pump device.

1 . A dry cleaner which rotates a drum containing clothing and which successively executes a washing step using a washing liquid, a dewatering step, and a drying step, 
 wherein heating means and cooling means for executing the respective steps comprise a heat pump device.    
   
   
       2 . The dry cleaner according to  claim 1 , wherein carbon dioxide is used as a refrigerant of a refrigerant circuit constituting the heat pump device.  
   
   
       3 . The dry cleaner according to  claim 1  or  2 , wherein the washing liquid is heated by the heat pump device.  
   
   
       4 . The dry cleaner according to any one of  claims 1  to  3 , wherein the washing liquid is cooled by the heat pump device.  
   
   
       5 . The dry cleaner according to any one of  claims 1  to  4 , wherein air supplied to the drum in the drying step is heated by the heat pump device.  
   
   
       6 . The dry cleaner according to any one of  claims 1  to  5 , wherein the air discharged from the drum in the drying step is cooled by the heat pump device.  
   
   
       7 . The dry cleaner according to any one of  claims 1  to  6 , wherein a valve for switching a refrigerant channel is disposed in the refrigerant circuit constituting the heat pump device.  
   
   
       8 . The dry cleaner according to any one of claims  1  to  7 , further comprising: water cooling means for cooling refrigerant of the heat pump device.  
   
   
       9 . The dry cleaner according to any one of  claims 1  to  8 , further comprising: auxiliary heating means for heating the air supplied to the drum in the drying step.  
   
   
       10 . The dry cleaner according to any one of  claims 1  to  9 , wherein the washing liquid is heated by the heat pump device in the washing step.  
   
   
       11 . The dry cleaner according to  claim 10 , wherein the washing liquid is heated by a high-temperature refrigerant discharged from the compressor constituting the refrigerant circuit of the heat pump device, a pressure of the refrigerant is reduced by a pressure reducing device, and thereafter the refrigerant is evaporated to thereby cool the washing liquid.  
   
   
       12 . The dry cleaner according to any one of  claims 1  to  11 , wherein the heat pump device comprises a plurality of systems of refrigerant circuits.  
   
   
       13 . A drying machine comprising: a storage chamber containing a matter to be dried; and a heat pump comprising a refrigerant circuit including a compressor, a radiator, expansion means, an evaporator and the like, washing, dewatering, and drying steps for the matter to be dried being executed in the storage chamber, refrigerant discharged from the compressor in the drying step being passed through the radiator, expansion means, and evaporator, air being circulated in the evaporator from the radiator through the storage chamber to thereby dry the matter to be dried in the storage chamber, the drying machine further comprising: 
 a water-cooling heat exchanger for taking heat of the refrigerant entering the expansion means; and control means for controlling whether to circulate cooling water in the water-cooling heat exchanger or to store the cooling water in the water-cooling heat exchanger,    wherein the control means performs a heat accumulating operation for passing the refrigerant discharged from the compressor into the water-cooling heat exchanger in the washing and dewatering steps and storing the cooling water in the water-cooling heat exchanger to accumulate heat in the water-cooling heat exchanger.    
   
   
       14 . The drying machine according to  claim 13 , further comprising: a bypass piping for bypassing the radiator to pass the refrigerant, 
 wherein the control means passes the refrigerant through the bypass piping in the heat accumulating operation to store the cooling water in the water-cooling heat exchanger.    
   
   
       15 . The drying machine according to  claim 13  or  14 , wherein carbon dioxide is used as the refrigerant of the refrigerant circuit.  
   
   
       16 . The drying machine according to any one of  claims 13  to  15 , wherein the control means circulates the cooling water in the water-cooling heat exchanger in a case where temperature of the cooling water stored in the water-cooling heat exchanger rises at a predetermined upper-limit temperature during the heat accumulating operation.  
   
   
       17 . The drying machine according to any one of  claims 13  to  16 , wherein the control means stops circulation of the cooling water into the water-cooling heat exchanger from start of the drying step until the temperature of the air passed through the storage chamber rises at the predetermined upper-limit temperature.