Heat exchanger
AssigneeNoritake Co., Limited
InventorsMasayuki Yasuda, Katsuhiro Kano, Tsutomu Ueda
Life of this patent
Estimating the term…
Abstract
A heat exchanger comprising an outer tube, one or more inner tubes disposed with interstice within said outer tube, and a spiral element extending longitudinally within said inner tube(s). The spiral element is made up of a plurality of unit elements connected together with a connection angle of 0.degree.. Each of the unit elements has a twist angle of 180.degree., with the direction of twist being reversed from one to a neighboring unit element. Channeling phenomenon is effectively avoided. Heat exchange medium with Rheynolds number Re>10.sup.4 is suitable.
Claims9
A heat exchanger tube, comprising
- a spiral element extending longitudinally within a tube,
- said spiral element comprising a plurality of unit elements connected together successively end-to-end with a connection angle of 0.degree., and
- each of said unit elements having a twist angle of 180.degree., with the direction of the twist being reversed from one unit element to a neighboring unit element.
A heat exchanger, comprising
- an outer tube,
- at least one inner tube disposed within said outer tube, and
- a spiral element extending longitudinally within said inner tube,
- said spiral element comprising a plurality of unit elements connected together successively end-to-end with a connection angle of 0.degree., and
- each of said unit elements having a twist angle of 180.degree., with the direction of the twist being reversed from one unit element to a neighboring unit element.
Dependencies are inferred from the claim text.