Polyhedral array heat transfer tube

Polyhedral array heat transfer tube

  • CN 1,705,857 A
  • Filed: 11/14/2003
  • Published: 12/07/2005
  • Est. Priority Date: 11/25/2002
  • Status: Active Application
First Claim
Patent Images

1. heat exchanger tube comprises:

  • Have the longitudinal axis and the tube-like piece with inner surface, described inner surface along the circumferential direction is divided at least two zones;

    The a plurality of polyhedrons of first, described polyhedron is formed on the inner surface along at least one multiaspect axon, each described polyhedron has four relative sides, described polyhedron has first and second parallel with described polyhedron axis, have third and fourth that tilts with described polyhedron axis, the longitudinal axis of described polyhedron axis and pipe forms first helical angle;

    AndThe a plurality of polyhedrons of second portion, described polyhedron forms on the inner surface adjacent with first a plurality of polyhedrons and along at least one described polyhedron axis and forms, each described polyhedron has four relative sides, described polyhedron has first and second parallel with the polyhedron axis, have third and fourth that tilts with described polyhedron axis, the longitudinal axis of described polyhedron axis and pipe forms second helical angle, the opposite orientation of the orientation of second helical angle and first helical angle.

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