Direct combustion steam generator

  • US 7,780,152 B2
  • Filed: 01/09/2007
  • Issued: 08/24/2010
  • Est. Priority Date: 01/09/2006
  • Status: Active Grant
First Claim
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1. An apparatus for direct contact combustion steam generation comprising:

  • a swirl-flow diffusion burner in a combustion zone within a chamber, said burner comprising at least one fuel inlet and at least one oxygen-containing fluid inlet, and wherein at least one of said inlets is adapted to create a vortex recirculation zone within an aerodynamically stable flame deployed along an axial core of said combustion zone within said chamber, and wherein said flame is of sufficient intensity to produce latent heat of vaporization of water corresponding to the pressure of operation; and

    wherein said chamber is defined by a wall comprising an inlet adapted to introduce an axial rotating flow of water along an interior surface of said wall, said flow of water defining said combustion zone and insulating said wall from said flame.

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