×

Vertical heat exchanger

  • US 5,425,415 A
  • Filed: 06/15/1993
  • Issued: 06/20/1995
  • Est. Priority Date: 06/15/1993
  • Status: Expired due to Fees
First Claim
Patent Images

1. A vertically oriented heat exchanger having no shell comprising:

  • a plurality of vertically disposed, laterally spaced tube elements each of which has an upper and a lower end, each of which includes an inner tube and a concentric outer tube spaced from each other to form an annular flow passage therebetween wherein said spaced tube elements are directly accessible from outside said heat exchanger;

    manifold forming means at both the upper and lower ends of said spaced tube elements for directing a fluid to be heated through said annular flow passage and for collecting the fluid from said annular flow passage, each of said manifold forming means including a hot tube sheet to which said inner tube of the concentric tubes is welded at each end thereof and an adjacent cold tube sheet to which said outer tube of the concentric tubes is welded at each end thereof, each of said cold tube sheets being parallel to and closely spaced inwardly of said hot tube sheets;

    said spaced hot and cold tube sheets being of circular configuration and said adjacent hot and cold tube sheets being interconnected at their periphery by an annular member welded thereto to thereby provide a manifold communicating with said annular flow passage;

    a distributor ring spaced inwardly of the annular member in each manifold, said distributor ring being of U-shaped transverse section welded to opposite tube sheets at the ends of the legs of said U-shape and provided throughout its peripheral extent with spaced, radially directed openings thereby forming an annular manifold surrounding each of said manifolds;

    nozzle means communicating with each of these manifolds through said annular member to supply fluid to and convey fluid from the annular manifold and through said radially directed openings to and from said manifold; and

    flow means for directing a heating medium through the inner tube of the pair of concentric tubes and conveying the same from these tubes, said flow means including a conical member at each end of the heat exchanger axially parallel with the tube elements and welded to the hot tube sheet, each conical member including axially separate flanged portions removably secured together to permit access to the hot tube sheets.

View all claims
  • 1 Assignment
Timeline View
Assignment View
    ×
    ×