Refrigerating machine comprising different sorption materials

Abstract

The invention relates to the use of an adsorbent instead of a condenser in a heat pump/refrigerating machine as well as the use of said adsorbant during the reduction of the vapor pressure in a heat pump/refrigerating machine in order to improve the desorption capacity. The invention further relates to a refrigeration method in which preferably two different adsorbants are used in two stages.

1 . Use of an adsorbent instead of a liquefier in a heat pump/refrigerating machine, especially a solid sorption heat pump, for pressure reduction in at least one desorption process, particularly intermediate pressure reduction in a solid sorption heat pump. 
     
     
         2 . Use of the adsorbent according to  claim 1 ,
 characterized in that   intermediate pressure reduction is effected via at least two stages, wherein in the first stage a refrigerant is desorbed, which previously has undergone adsorption in this stage, and the gaseous refrigerant formed in this way, especially water/water vapor, being passed into a second stage for adsorption on another adsorbent.   
     
     
         3 . Use of an adsorbent, in particular according to  claim 1 , in vapor pressure reduction in a heat pump/refrigerating machine to improve the capacity of desorption of the first stage. 
     
     
         4 . A method for refrigeration in a refrigerating apparatus/heat pump, especially a solid sorption heat pump,
 characterized in that   an adsorbent is used instead of a liquefier.   
     
     
         5 . The method according to  claim 4 ,
 characterized in that   apart from the adsorbent as liquefier, at least one further liquefier is used in addition.   
     
     
         6 . The method according to  claim 4 ,
 characterized in that   the refrigerating apparatus has at least two adsorption and desorption units.   
     
     
         7 . The method according to  claim 6 ,
 characterized in that   the solid sorption heat pump additionally has a storage unit in such a form that the latter can be shut off from the rest of the solid sorption heat pump by one or more vapor barriers or a vapor valve.   
     
     
         8 . The method according to  claim 4 ,
 characterized in that   at least two different adsorbents are used.   
     
     
         9 . The method according to  claim 8 ,
 characterized in that   desorption of the adsorbent in the first stage is achieved by adsorption in the second stage.   
     
     
         10 . The method according to  claim 4 ,
 characterized in that   an adsorption stage is connected between desorption and liquefaction.   
     
     
         11 . The method according to  claim 4 , which method results in a reduction of the desorption pressure of the first stage and a decoupling of this pressure from the condensation/desorption pressure of the second stage. 
     
     
         12 . The method according to  claim 11 , which method results in at least two different relative vapor pressure reductions in an adsorption refrigerating machine. 
     
     
         13 . The method according to  claim 11 ,
 characterized in that   the same adsorbent is used in both stages.   
     
     
         14 . Use of the method according to  claim 4  in intermediate pressure reduction. 
     
     
         15 . Use of an adsorbent, in particular according to  claim 1 , as a vapor sink for a desorption process in a solid sorption heat pump for pressure reduction, especially for pressure reduction of desorption of a first stage.