Container and a device for indirectly cooling materials and method for producing the container

Abstract

The present relates to a container and to a device for indirect material cooling and to a method for producing the container according to the invention. Through the present invention a much more efficient indirect heat transfer is facilitated from the exterior of the container into the interior of the container. The improvement of the heat conductivity and of the heat transfer of centrifuge containers yields a reduction of the necessary power of the refrigeration system for cooled centrifuges. Through the higher performance of the centrifuge a higher speed can be run for identical centrifuge temperatures and/or at the same centrifuge temperature and speed, the input power of the refrigeration unit can be reduced.

1 . A container for indirect cooling of materials in a device like a centrifuge, stirring device, cooling device, like a refrigerator or similar, wherein the container can be brought into heat conducting contact with the cooling device of the device, and comprises a container body, wherein the container body comprises at least two container layers in heat conducting contact with one another and with different thermal conductivity, wherein a layer with higher heat conductivity is disposed at an outside of the container to be cooled by the cooling device; 
     
     
         2 . A container according to  claim 1 , wherein the heat conductivities differ by a factor of great than 10, preferably greater than 30, preferably greater than 100. 
     
     
         3 . A container according to one of the preceding claims, wherein the layer with lower heat conductivity is made of a material comprising of stainless steel, steel, ceramic, glass, nano material and/or plastic and the layer with higher heat conductivity is made of a material comprising aluminum, gold, carbon, copper, magnesium, brass, silver and/or silicon or its alloys. 
     
     
         4 . A container according to one of the preceding claims, wherein the layer with higher conductivity comprises a thickness of less than 1 mm, preferably less than 0.5 mm and in particular less than 0.2 mm. 
     
     
         5 . A device for treatment, in particular centrifuging, stirring, cooling or similar of a material, in particular a laboratory centrifuge, a refrigerator, a freezer, in particular a laboratory refrigerator and/or a laboratory freezer or similar, with a container and a cooling device that is only in heat conducting contact with portions of a cooled outer surface of the container for indirect cooling of the material disposed inside the container, wherein the container is configured as the container according to one of the preceding claims. 
     
     
         6 . A device according to  claim 5 , wherein the container is enveloped by a cooling conduit at its sidewall and/or at its bottom, which cooling conduit is tubular and conducts a cooling medium and is preferably wound in a spiral about the side wall and/or the bottom. 
     
     
         7 . A method for producing the container according to one of the  claims 1  through  4 , wherein the layer with higher heat conductivity is disposed on the layer with lower heat conductivity and vice versa. 
     
     
         8 . A method according to  claim 7 , wherein the layer with higher heat conductivity is placed onto the layer with lower heat conductivity after the layer with lower heat conductivity has substantially obtained the shape of the container or vice versa.