Heat exchanger
AssigneeLinde Aktiengesellschaft
InventorsRobert Adler, Ekkehardt Klein, Christoph Nagl, Andreas Pollak
Life of this patent
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Abstract
A heat exchanger is disclosed having a first cylindrical tube and a lead screw which extends coaxially inside the first cylindrical tube; the inner surface of the first cylindrical tube has guiding grooves, and a cleaning element is secured to the lead screw in such a way that a rotating movement of the lead screw moves the cleaning element in the axial direction along the guiding grooves.
Claims20
A heat exchanger comprising
- a first cylindrical tube and a threaded spindle that runs coaxially in the first cylindrical tube,
- wherein the inner surface of the first cylindrical tube has guiding grooves, and wherein a cleaning element is secured to the threaded spindle in such a way that rotating the threaded spindle moves the cleaning element in an axial direction along the guiding grooves.
A method for liquefying a gas using a heat exchanger comprising a first cylindrical tube and a threaded spindle that runs coaxially in the first cylindrical tube, wherein the inner surface of the first cylindrical tube has guiding grooves, and wherein a cleaning element is secured to the threaded spindle in such a way that rotating the threaded spindle moves the cleaning element in an axial direction along the guiding grooves wherein
- a second cylindrical tube is arranged coaxially to the first cylindrical tube,
- wherein a coolant flows between the first and second cylindrical tube,
- wherein a working medium flows between a first cylindrical tube and threaded spindle, which contains the gas to be liquefied, and
- wherein the cooling medium flows at a lower temperature than the working medium, wherein the pressure and temperature of the cooling medium along with the pressure of the working medium are adjusted in such a way that the gas to be liquefied is liquefied in the working medium through heat exchange with the cooling medium.
Dependencies are inferred from the claim text.