Back to results
US 10,928,058 B2Granted
Flash boiler
OwnerGuy Louis Letourneau, Richard E Ashermaninventors
Life of this patent
Estimating the term…
Abstract
A flash boiler has a water jacket and a vertically oriented interior passage which includes water tubes or superheating tubes, or both. The interior passage is a hyperboloid surface to induce draft. Water tubes and superheating tubes can be staggered so as to create a helical path for flue gas passing through the boiler. Water tubes and superheating tubes may include, internally or externally or both, heat transfer aids such as pins, fins or vanes, which may also be helices.
Claims17
A flash boiler comprising:
- a reservoir defined by an inner wall,
- said inner wall comprising a surface of revolution about a central axis,
- an outer wall comprising a surface of revolution about said central axis,
- and top and bottom membranes, and
- a plurality of water tubes residing within said inner wall, said water tubes transverse to and intersecting said central axis and spaced apart along said central axis
- said reservoir further comprising an inlet and a cap therefor.
3 more elements
A flash boiler comprising:
- a reservoir having an internal passage for flue gas, said passage defined by a surface of revolution about a central axis,
- a plurality of water tubes disposed within said passage, transverse to and intersecting said central axis, and spaced apart along said central axis, and
- with each of said water tubes fixed at an angular offset relative to an adjacent water tube such that said plurality of water tubes form a helix as they progress in an axial direction.
Dependencies are inferred from the claim text.