Helium heated bayonet tube steam generator
Patent
·
OSTI ID:7291553
A helium-heated steam generator is described. It consists of: an outer shell; a helium intake in said outer shell; a helium exhaust in said outer shell; a main tube sheet in said outer shell; a plurality of economizer bayonet tube assemblies extending upward from said main tube sheet; a plurality of evaporator bayonet tube assemblies extending upward from said main tube sheet; a plurality of superheater bayonet tube assemblies extending upward from said main tube sheet; each of said bayonet tube assemblies having an inner tube and a coaxial outer tube of larger diameter, said outer tubes having closed upper ends and being connected with said main tube sheet, said inner tubes extending below said main tube sheet; a feed water inlet for supplying fluid to said economizer bayonet tube assemblies; first conduit means permitting communication between said economizer bayonet tube assemblies and said evaporator bayonet tube assemblies; second conduit means permitting steam leaving said evaporator bayonet tube assemblies to flow into the annular space between the inner and outer tubes of said superheater bayonet tube assemblies; and a steam outlet through said shell connected with the inner tubes of said superheater bayonet tube assemblies. Steam will be superheated in the superheater bayonet tube assembly while flowing upward in the space between the outer and inner tube of the superheater bayonet tube assemblies and leave the superheater bayonet tube assemblies by the inner tubes of the superheater bayonet tube assemblies.
- Assignee:
- Foster Wheeler Energy Corp.
- Patent Number(s):
- US 3939804
- OSTI ID:
- 7291553
- Country of Publication:
- United States
- Language:
- English
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