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US 7,168,395 B2Granted
Submerged combustion LNG vaporizer
OwnerGerald E Engdahlinventor
Life of this patent
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Abstract
This invention discloses a method and device for vaporizing LNG with a submerged combustion vaporizer. The submerged combustion LNG vaporizer uses spiral tube heat transfer circuits and a submerged combustion heat source for vaporizing LNG. The submerged combustion heat source has a unique low submergence heat and mass transfer arrangement for heating circulation water.
Claims5
A LNG submerged combustion vaporizer comprising:
- a source of products of combustion;
- at least one set of perforated plates;
- wherein
- products of combustion flow generally through apertures in at least one set of perforated plates;
- a submerged combustion water inlet means;
- wherein circulation water is directed to flow through the submerged combustion water inlet means and generally across the perforated plate and be heated by the products of combustion;
- LNG heat transfer surface area for containing and vaporizing LNG;
- wherein heat exchange is provided between the LNG heat transfer surface area and the heated circulation water;
- and
- at least one pump returning circulation water to the submerged combustion water inlet means.
7 more elements
A LNG submerged combustion vaporizer comprising:
- a source of products of combustion;
- at least one set of perforated plates;
- wherein
- products of combustion flow generally through apertures in at least one set of perforated plates;
- a submerged combustion inlet means;
- wherein circulation water is directed to flow through the submerged combustion inlet means and generally across the perforated plate and be heated by the products of combustion;
- LNG heat transfer surface area for containing and vaporizing LNG;
- wherein heat exchange is provided between the LNG heat transfer surface area and the heated circulation water;
- at least one pump returning circulation water to the submerged combustion inlet means;
- and
- wherein various fluids including LNG are heated and vaporized in the vaporizer or are heated in the vaporizer.
8 more elements
A LNG submerged combustion vaporizer comprising:
- a submerged combustion heat source further comprising:
- a products of combustion heat source;
- at least one set of perforated plates;
- a submerged combustion water inlet means directing water to flow generally across at least one set of perforated plates;
- wherein the products of combustion are directed generally through apertures in the perforated plate to heat the water;
- LNG vaporizer heat transfer area further comprising:
- an annular space flow arrangement;
- a vaporizer water inlet plenum communicating with the annular space;
- at least one LNG inlet manifold and at least one LNG outlet manifold;
- rows of spiral tube heat transfer circuits for containing and vaporizing LNG being positioned generally within the annular space and communicating with at least one LNG inlet manifold;
- a vaporizer water outlet plenum communicating with the annular space;
- and
- at least one pump circulating water to or from the LNG vaporizer heat transfer area to or from the submerged combustion heat source.
10 more elements
A LNG submerged combustion vaporizer comprising:
- a source of products of combustion;
- at least one set of perforated pirates;
- wherein
- products of combustion flow generally through apertures in at least one set of perforated plates;
- a submerged combustion inlet means;
- wherein circulation water is directed to flow through the submerged combustion inlet means and generally across the perforated plate and be heated by the products of combustion;
- LNG heat transfer surface area for containing and vaporizing LNG;
- wherein heat exchange is provided between the LNG heat transfer surface area and the heated circulation water;
- at least one pump returning circulation water to the submerged combustion inlet means;
- and
- wherein the products of combustion and an external heat source or an external heat source provides the heating duty.
8 more elements
Dependencies are inferred from the claim text.