REFRIGERANT COOLING ASSEMBLY FOR CENTRIFUGES

摘要

A refrigerant tubing (34) is preformed to provide a flat contact surface (42) against the outside surface of a centrifuge chamber (32). The tubing (34) is tightly wound around the centrifuge chamber (32) in a continuous fashion including a flat spiral (46) at the base (33) of the centrifuge chamber. For the section of the tubing in contact with the vertical cylindrical wall (35) of the centrifuge chamber (32), the pressure for maintaining contact pressure between the flat surface (42) of the tubing (34) and the chamber wall (35) is provided by the tension in the wrapping of the tubing (34). For the section of the tubing (34) at the base (33) of the centrifuge chamber (32), contact pressure may be provided by a clamping mechanism (58). To further enhance heat transfer between the refrigerant coils and the centrifuge chamber (32), a high heat conductive epoxy (44) may be applied between the tubing (34) and the centrifuge chamber surface.