Coiled Heat Exchanger

Abstract

A coiled heat exchanger having a plurality of tubes, which are helically coiled around a core tube in one or more concentric layers of tubes and form a bundle in the form of a hollow cylinder, and also having a shell, which delimits an outer space around the tubes, is disclosed. It is formed in such a way that, during operation, heat is transferred between at least two fluid streams, one of which flows through the interior of the tubes and the other of which flows through the outer space. At least one elastic component that does not transfer heat and comprises a metallic material is arranged inside the shell and radially outside the bundle.

1 - 13 . (canceled) 
   
   
       14 . A coiled heat exchanger having a plurality of tubes, which are helically coiled around a core tube in one or more concentric layers of tubes and form a bundle in a form of a hollow cylinder, and also having a shell, which delimits an outer space around the tubes, which is embodied in such a way that, during operation, heat is transferred between at least two fluid streams, one of which flows through an interior of at least one of the tubes and another of which flows through the outer space, wherein at least one elastic component that does not transfer heat and comprises a metallic material is arranged inside the shell and radially outside the bundle. 
   
   
       15 . The heat exchanger according to  claim 14 , wherein the elastic component that does not transfer heat is connected positively, non-positively or in a sliding manner to at least one heat transferring component. 
   
   
       16 . The heat exchanger according to  claim 15 , wherein the at least one heat transferring component is one of the tubes. 
   
   
       17 . The heat exchanger according to  claim 14 , wherein the elastic component that does not transfer heat is connected positively, non-positively or in a sliding manner to a component that does not transfer heat. 
   
   
       18 . The heat exchanger according to  claim 14 , wherein a shroud is arranged between the shell and an outermost layer of tubes and the elastic component that does not transfer heat is connected positively, non-positively or in a sliding manner to the shroud. 
   
   
       19 . The heat exchanger according to  claim 14 , wherein the elastic component that does not transfer heat is connected positively, non-positively or in a sliding manner to the core tube. 
   
   
       20 . The heat exchanger according to  claim 14 , wherein the tubes have a coefficient of thermal expansion, which is greater than 8·10 −6  1/K. 
   
   
       21 . The heat exchanger according to  claim 14 , wherein the elastic component has a resilience in at least two opposing directions. 
   
   
       22 . The heat exchanger according to  claim 14 , wherein at least two elastic components that do not transfer heat are arranged along an axis of the bundle. 
   
   
       23 . The heat exchanger according to  claim 22 , wherein at least four elastic components that do not transfer heat are arranged along the axis of the bundle. 
   
   
       24 . The heat exchanger according to  claim 14 , wherein at least two elastic components that do not transfer heat are arranged along a circumference of the bundle. 
   
   
       25 . The heat exchanger according to  claim 24 , wherein at least four elastic components that do not transfer heat are arranged along the circumference of the bundle. 
   
   
       26 . Use of the heat exchanger according to  claim 14  at an operating temperature that is less than an ambient temperature. 
   
   
       27 . Use of the heat exchanger according to  claim 14  at an operating temperature that is less than −40° C. 
   
   
       28 . Use of the heat exchanger according to  claim 14  for executing an indirect heat exchange between a hydrocarbonaceous stream and at least one hot fluid or cold fluid. 
   
   
       29 . Use of the heat exchanger according to  claim 28 , wherein the hydrocarbonaceous stream is formed by natural gas. 
   
   
       30 . Use of the heat exchanger according to  claim 28 , wherein the hydrocarbonaceous stream is liquefied, cooled, heated and/or vaporized during the indirect heat exchange. 
   
   
       31 . A coiled heat exchanger, comprising:
 a core tube;   a plurality of heat transferring tubes helically coiled around the core tube in one or more concentric layers of tubes and forming a bundle in a form of a hollow cylinder;   a shell which delimits an outer space around the tubes;   a shroud that does not transfer heat disposed between the shell and an outermost layer of tubes; and   an elastic component that does not transfer heat and comprises a metallic material is arranged inside the shell and radially outside the bundle.   
   
   
       32 . The coiled heat exchanger according to  claim 31 , wherein the elastic component is connected on a first side of the elastic component to the shroud and the elastic component is connected on a second side of the elastic component to one of the plurality of tubes. 
   
   
       33 . The coiled heat exchanger according to  claim 32 , wherein the elastic component is connected on the first side of the elastic component to the shroud via a first intermediate piece and the elastic component is connected on a second side of the elastic component to one of the plurality of tubes via a second intermediate piece.